I vote for a canoe. If you ever want to take another person, you can easily accomodate them. If not you're good there as well. I built "outriggers" for mine with 2 swim noodles and some pvc. I can stand in that thing with my lab leaning over the side, and fly cast easily.

Mine is a heavy, molded plastic boat, but suits my needs. I would like a lighter version someday....