Simple answer! Go for Ariane!Why? Simple, cause it is "BOEING 737NG"! Everything, from model, flaps, interior...look like and act like real thing. Yes, frame rate in VC is poor, but what else to expect from cockpit where ALL buttons, switches etc WORK, in FS2004. FSX version don't have that kind of problem, i mean FPS. And yes, it is better than every 737 PMDG model.Maybe PMDG was good for his time, but not any more. PMDG don't have real looking VC, Ariane does! Flaps on PMDG are waaaay tooo big, than it should be, Ariane have them as they are in real life. Ariane have problems with gauges refresh rate, PMDG have problems with whole VC, with FPS. Overhead panel in PMDG is just simple 2d texture, there is no 3d buttons, and still it is very poor on FPS...I don't want to start WAR, again, between PMDG fans and Ariane fans. But thats a truth. As i said, PMDG was good for his time, but now Ariane is better. Simple as pie! Maybe PMDG is goin' to make better one, cause they work on new 737NGX, who knows. For now, Ariane 737NG is a REAL DEAL.