I'm another who's recently made the change. I had about a 6 month rest from riding before i changed to stock, so I can't compare it to my mod too well.
The 26" definitely feels a lot nicer to me. Feels a lot less cramped than a mod and feels more like a normal bike. Gaps, and rolling moves are all much easier. I find moves like sidehops a bit trickier though. This is just from my experience, and as mentioned above you should try out some friends bikes and see what you think.