Help - GMC or Chevy and what year?

[timg47]

been lurking for some time and learning lots, thanks for that. I have a 61 apache, and 64 long fleet. I had a 52 in high school, long time ago. really want to get a project. I have searched and searched and suprisingly not found much info on my question. and yes its a loaded question.

should I get a Chevy or GMC, from a parts avail. standpoint etc.

whats the best year? 54 has one piece windshield which is cool but so is the two piece.

so just looking for opinions and your expertise. thanks in advance.

Tim