I have a Motorola Droid. The stock keyboard on that one is awesome. There are some minute differences in the Sense UI keyboard that I don't like. Particularly when you use autocomplete it doesn't put a space in automatically. No way to change this.
I'd like to replace the keyboard apk with standard keyboard from Droid, or Nexus One etc. On older HTC phones you could disable Sense items, like on the Eris etc. This isn't possible on the INcredible.