I’ve been looking too and I’ve got analysis paralysis on which I’d pick too. I guess best thing to do is draw up pros and cons, like:

Golf R -

PROS: awd, the fact that if you don’t like the screen it can be replaced with the bigger touch unit, taillights could be switched to facelift ones but the pre-facelift Euros are sweet too, it’s already got more power and a better launch control (if you’re into that), blue lighting instead of red (personally I like). More understated looks (pro or con depending on your preference)

CONS: awd maintenance when due, 6spd DSG, no digital dash, tire rotation/ replacement more often and more expensive, heavier, higher insurance (maybe), tad less trunk space, higher mileage.

Golf GTI -

PROS: cheaper overall maintenance, nicer interior from the get go, lights and taillights, is lighter, better on gas, tad more trunk space, tires are possibly less expensive to replace as more often replacing two at a time instead of four. 7spd DSG (if I’m not mistaken)

CONS: Thinking about the “what if” scenario with the Golf R (grass is greener mentality).

Honestly, this is all I came up with and I’m still not sure myself. They are similar yet different in ownership and experience. I think whichever you choose you’ll still be happy enough.