Whatever! Let's get back to the original question, shall we?:
All the grousing, semantics and debating aside,
I now have the two camera systems in the original title of this thread, (S2P and H4D) and have used them side-by-side for more than a brief period ... and even used them for the same shot. However, redundancy is not the intent of having both kits. They are clearly different animals sharing one attribute ... better IQ than currently available from any 35mm DSLR. In that way, they are
brother's-in-arms battling for truth, justice and better IQ. :ROTFL:
Size: this has been hotly debated since the S2 lenses supposedly aren't any smaller ... which BTW isn't true ... except for the standard 70mm lens, they
are smaller. Anyone that's packed a camera bag knows this is relative to bulk not just sizes. It is much easier to pack a roller with the S2 and 4 currently available lenses than it is the H4D and four comparable lenses: HC/35mm, 80 or 100mm, 120 macro, and the HC/210 verses the S180 ). When packing the H4D, I simply need a bigger bag. For example, the HC/35 takes a 95mm filter and has a big hood which requires more space, the S35mm is 82mm and has a more compact fitting hood. The HC/120 Macro is much bigger than the S120 macro, and the HC/120 is too tall to stand upright in my Think Tank Airport roller where the S120 does stand upright. Same for the S180 verses the H/C210. The HC/28, 35, and 35-90 are all 95mm filter sizes with big hoods and none of them fit in any lens bag compartment I've used, like those from Think-Tank. The S35mm with hood
does fit in my Think-Tank lens bag.
Versatility: This is obviously relative to use and application intent.
The modular H4D can be used in more different shooting configurations, like using most sensor units on tech field camera or studio type view camera with full movements, or as a unified unit with the HTS/1.5 adapter, and it offers a waist level finder. The H has useful features like mirror delay to assist in hand-held work. While many have used the HD cameras in bad weather, it isn't an advertised attribute, and as Guy has pointed out, it's a no brainer to secure a cover like everyone has done forever. While I apparently have less dust issues than others, it is a fact of life with MFD.
On the other hand, the S2 is truly weather sealed and lends itself to inclement weather shooting and has been advertised as such. It is NOT immune to dust ... despite my careful handling, I have had to clean the sensor ... which is much harder to do than with any modular MFD. The jury is still out regarding ever being able to use T/S with the S2 ... my understanding is that the S2 Sensor uses Micro-Lenses (please correct me if I am wrong here). If correct, that raises the specter of color casts, and without proprietary software it would be interesting to see how this would be dealt with even if one could rig a T/S solution.
Optics: it is my subjective opinion that the S lenses are better than the H/C optics ... or the comparable Contax 645 Zeiss lenses, or the Zeiss V optics I used to use on my H camera via the CF adapter. However, this is relative to sensor size ... the larger sensor H4 units printed to the native S2 size look every bit as sharp and contrasty if not more so. I'd subjectively say that the H4D/40 gets edged out by the S2 due to optics if pixel peeping. Go to the 50 meg or 60 meg H4D and it becomes debate-able based on sheer file size. I'm talking making prints here.
Focusing: Despite initial reports to the contrary, and some user experiences, I've found the S2 AF to NOW be very accurate, perhaps due to the more recent firmware tweaks. I also think it is faster than the H4D in lower contrast lighting, but not by a huge margin, and dependent on which lenses. The clear advantage of the H4D is True Focus/Absolute Position lock which facilitates off center compositions better than anything from anyone I've used to date. I've found those that may disagree either haven't used it, or are owners that didn't know how to use it. This advantage doesn't manifest itself when shooting stopped down compared to using the center AF point and recomposing, where DOF and distance to subject tends to mask focus shift when recomposing. It DOES make a difference when shooting wide open or close to wide open, especially closer up where DOF is reduced by a big margin. Both the S2 and H4D offer fast aperture lenses, so this is no small matter if one uses these apertures with off-center compositions.
Software: Obviously, the proprietary Phocus software for the H4D system has its advantages, being highly tuned to the integrated system approach Hasselblad has taken. Here, I also have found most users that complain haven't taken the time to explore and master it. Images processed in LR seem to look good, but pale in comparison to those properly addressed in Phocus. The S2 files are DNGs processed in LR and DO offer the advantage of very comprehensive editing/processing tools and direct links other programs without leaving the LR library. I still question whether the maximum is being extracted from the S2 files in LR ... and feel certain image issues like a tendency toward hot reds/magenta skin cast could be addressed with a proprietary profile for the S2 ... or something along those lines.
Pricing: Another major bone of contention often brought up in any discussion. IMO, Hasselblad has been fairly competitive relative to the general MFD market, and offers attractive trade in programs or promotions (like the H4D/40 with 35-90 zoom promo from last year, which was one hell of a nice deal given that the lens is $7,200). The S2 doesn't have any trade or promotion deals ... so one has to compare non-promo pricing verses the S2 to get a better idea of price/value. I do NOT think H stuff holds its value used as well as it should. If Leica holds true to past experiences with the M and R gear, it should hold its percentage of price better ... at least for the lenses. Other than that ... it's a Leica ... what else can I say?
Open for questions or even trying some other comparative exercise if I have time, and it doesn't involve shooting test charts or brick walls
P.S.
Service: based on experiences to date, both companies have been responsive and swift. A good dealer relationship is essential. Warranties: the Leica extended warranty is more expensive than the Hasselblad ones, BUT if you want HOT swap coverage then the gap closes. Hasselblad doesn't offer any extended service warranty for lenses where Leica does ... but I don't know if the lens that comes with a Hassy kit is covered by the over-all extended warranty.