I know I'm going to be hated for this...
I really, really hate the original Enterprise design.
NOW, before you get out the laser pitchforks and prepare to castrate me with a bat'leth, hear me out!
In terms of the Constitution class starships, I always preferred the refit - the swept-back nacelle pylons, the non-glowy-ball-fronted, oblong nacelles, the neck-mounted photon torpedo pods. The movie version, in other words, the version that shares a lot of parts commonality with the Miranda class.
I just think it looks better.