I've used a straight spotter for years and always "assumed", because of what I'd been told, straight was more versatile, easier to find an object with. That was until I used a couple of angled scopes over a several year period. I changed my mind.
I really have no problem finding objects with an angled scope, and angled is more comfortable to use (no need to repeat others input on the subject).
Suffice to say, I think a straight scope is at its best where weight and size are at a premium, like on a backpack hunt. Otherwise, I think all the marbles are in the angled scopes corner.
When I replace my current straight scope it will be an angled.