It depends on what you are looking for.
If you want to stay closest to the original experience, I would go with New Vision only. There's really no downside with that mod; it doesn't change the look of the game, it just takes the blur out of environment textures displayed on a high resolution monitor.
HTO on Default starts taking some liberties, some things don't look as they do in the original game, but they are not major ones from what I can tell. There's some environmental texture changes from Revision that I would prefer stayed in Revision. But HTO improves the characters without really changing how they look. I like that, because I'm so used to how the characters look. The character models in HDTP are well done, but they are different enough from the originals that it's hard to get comfortable with them. Since you're starting fresh, that might not be a hangup for you.
Revision is a bigger graphical overhaul. It combines some of the major convenience, bug fix, and visual mods that preceded it, including New Vision and HDTP (which is optional), but it goes way beyond that with many more new textures, revised lighting, and expanded maps. The lighting changes are good. The map changes are a mixed bag IMHO and a couple of the hub levels are worse than the originals. Revision is pretty good at preserving the original gameplay, although the revised maps did change my approach in a few places.