Effloresce is a brilliant debut, and very accomplished.
I relly like Everyone into Position as it's still quite prog and has some catchy choruses too, and plenty of good riffs.
Frames shows that they can still produce quality music and that they haven't ran out of ideas after two excellent full lengths and a great EP. Alot more than can be said for alot of other bands.
Tough choice, they're all just good in their own way.