I don't like the neck pickup, I'd change it with a Strat neck pickup, but you can't because of the way the Tele is designed you'd have to rerout the neck pocket. I also don't like the bridge design with the 3 saddles, I want separate saddles for each string and a bridge design where I can exchange the bridge or the bridge pickup without having to take apart half of the guitar. And the standard 21 fret neck on most Tele's sucks ass too. But at least 22 frets seems to become more normal. Those are the things I would change. Make the guitar easier to mod basically. Which I think is why the Strat has been so popular for modding. Body contouring, meh, as long as there's no sharp edge like with the Les Paul I'm fine with the Tele body as it is.