Sony has certainly laid down an impressive gauntlet. 3 cameras with identical sensors, lightning fast lag, DSP's and OLED's.
The A77 offers magnesium, weather-proofing and a somewhat over engineered rear LCD (the Pany and Canon 60D approach is SOOOOO much better). A somewhat better AF (than the A65). All in a body on a par in volume as a Canon 7D.
The A65 offers somewhat a somewhat lesser (but by no means horrible) AF. An LCD that's is pretty useful most of the time (except for side shots, self-portraits and any swing out use on a tripod) all in a nicely compact, nicely sculpted (according to what I saw on dpreview.com), non-weather proofed, very high grade plastic body that should take a reasonable amount of abuse (I haven't seen too much loss for wear in the G1 I've owned for three years).
Another pleasant surprise is this 16-50mm f2.8 lens which really WOWED SLR-Gear who gave it a very impressive review:
http://www.slrgear.com/reviews/showproduct.php/product/1449/cat/83
With identical BIONZ engines the ISO noise and DR should be similar. And unless you really need the extra power of the A77, $1600 for the A65 body and 16-50mm could be a great way to go.
The NEX 7 with the 24mm f1.8 Zeiss would be no slouch either. Solid build. Very nice sculpting. All in a compact body that lies between the X100 and M9. (The X100 has certainly got a serious competitor.)
They've got my vote.