Hackers are worse, especially when the only go into hacker modde in the final stretch. If you're going to be a bastard, do so from the start.
*Cheaters (I doubt many of them are even hacking, more like using scripts found online) And yeah, at least if I know from the start I'm going to be up against someone I cannot possibly win against I can self-sabotage so I'm not wasting my time.