This made me laugh, very true.
Slow players are probably the most annoying, especially the guys that wander around looking for their ball out in the middle of the junk while a group is on the tee box waiting to hit. Drop or suck less, the choice is yours.
Also, I ran in to one of the most annoying things I've ever seen during a round a couple weeks ago. Another solo player and I got paired with a couple other guys for the back 9 of a round and 1 of the guys in the twosome clipped his iphone on the dash of his cart and blasted music out of it the entire time. It sounded like crap because it was coming out of a cellphone speaker and it was annoying because nobody could concentrate if the cart was anywhere nearby. The guy who owned the phone was a jackhole and would pout and fake rage every time he hit a crappy shot which made the experience even worse. If this happened more often I would say this type of player is the worst but like I said I've never seen this before so I think it was basically a fluke.