Hadn't thought about the CDT, but now that I do I'm mostly leaning towards to AT for 3 reasons:
1. I'll end in Maine at the beginning of ski season and may just try to find a job at a resort up north, my sister also lives in Vermont.
2. I also assume that the AT is more a more frequented destination, which would allow me to only loosely plan the trip (since it's three weeks away)
3. I don't anticipate being on/near the east coast for any more long periods of my life (i was born in florida), so the likelihood of me visiting any of the areas on the AT is slim
Plus doesn't the CDT take at least 6 months? opposed to the 5 I feel I could do the AT in.
Rain gear, of course. I'm looking at the outdoor research helium for a top, and will probably myog some legs (or just get some cheap tyvek painters pants). I will proabably spend the 3 dollars on a head net as well, even coming from FL where the mosquito is the state insect, i hate them.
For water storage I have a 2L camelbak bladder sitting around...it may be heavier than most, but it's already purchased...that'll probably get added.