I hate the places that make their servers split tips. If I wanted to tip the guy across the room who never said a word to me, I'd go hand him some cash. I have no patience with any system that allows freeloaders to coast on someone else's hard work.
It seems like a crappy way to do things, but it's actually a much better system. First reason being that it improves teamwork. If two people are working the same bar, they need to both be engaged in helping all the customers. Second, (on a similar note) sometimes two people can work together most effectively if they're doing separate tasks. For example, the last bar I was working at, I worked with a young, pretty girl with big boobs and a bubbly personality, who was great at entertaining people, but wasn't all that great when it actually came to cranking out drinks. Meanwhile, even though I'm great with guests I couldn't elicit the same good feelings from people as she could, because let's face it a bubbly girl in her mid 20s with a pretty face and big boobs has a much different effect on the majority males who pay the tabs at bars, than does a man in his 30s. But I was able to push sales better than she was, my speed was far better, my technique was far better, my knowledge was better, and my organization was better. So even though there were times when she'd piss me off because I was slammed with drinks and she was yapping, I'd let her do most of the entertaining, and I'd spend the better part of my time cranking out drinks and keeping track of our supplies, and things like that. Together, that girl and I would pull in more money than anyone else could. Aside from that, there's no good way to readily split the cash tips. You put money in a tip jar, there's no way for me to pull it out and know if you meant it for me or for Suzy Q.
Of course, that some people might not have the same work ethic and might be able to coast along is a downside, but that's usually best dealt with by letting management put a foot up their ass. The boss doesn't want them freeloading anymore than you or I do.