I have both the '11 and a '14 Revo 11s and personally prefer the lower center of gravity the older seats provide. I use the i-comfort seat pad with it and find it quite comfortable. You do get a wet butt with the old seats pretty easily so if that is an issue, then a '15 or newer model might be preferable. The 2013 "V-2" Drive is every bit as durable as the newer GT Drive (2015 and newer), but has a little more friction. It can be upgraded for about $150 to $250 (depending on whether you are adding Turbofins).
You should have no cracking issues in the drivewell area on this boat.
