Guild Wars 2

For endgame which is better? I’m probably going to be doing pve dungeons and wvw.

Hi I’m a returning player that can’t decide between maining guardian or warrior. I like both classes but I really want to focus on one. I already have a lvl 80 warrior and I enjoy playing him but I find him kinda boring. Are guardians worth maining over warriors or should I just stick with my warrior?