I'd suggest considering a 3wt. for creeks in the greater area. I tried a few 1 and 2s and didn't find them useful. I'm not a seasoned pro though I do know some others share the opinion. Maybe you've tried 1-3 wts. prefer 1s and 2s, in that case disregard, but if you haven't I'd try before you buy.
Eh...idk...I'm not fishing the same water you are, but for me, a 3wt marks the light end of standard trout gear, while 2wt marks the beginning of true ultralight. Of course that's purely subjective, but if I were to lose my 1wt and 000wt, my 3wt wouldn't be a replacement for them...just a different rod for a different purpose, and I'd immediately be on the lookout to replace them with sub-2wt gear.
It's not, for me, that I can't fish the same places with a 3wt, but for that matter, I might as well bring a short, slow 5wt. The reason I'm going light is because it's more fun, and if that's the main reason, the lighter, the better.