2012 X-Factor vs Ride 135 (2 very nice kayaks)
IMO there were only 4 reasons why you might not like the Ride 135:
1. Offset rear handle (Like the X-factor, heavy & offset handle makes it awkward to carry)
2. Small front Keel (Takes water over the front in a lil white cap and will punch through big waves rather than going over)
3. Leaky front hatch. (think this was improved on in the new 2012 models but not sure)
4. Only 400lb. capacity rating

IMO the reasons you'd like it:
1. EVERYTHING ELSE! WS made more improvement to the cockpit & they are definitely nice! Especially for river fishing IMO. I paddled Neumie's 2012 model & found they are faster than the older models too

The Malibu X-Factor is gunna be more yak to haul

But is a lot dryer ride in chop because of the more pronounced keel. It's slower than the Ride but has a 650lb weight capacity rating. It does not have the offset rear handle

Their hatches use to leak too & Malibu also had issues with thin areas in the their hulls. I understand that Malibu has addressed these 2 problems

If i had to do over again, being a big man myself, would go with the X-Factor.