[pzhon]

There is a big difference between top 2 and bottom 2. If you have bottom 2, and the top card pairs, you have suddenly fallen behind people who just had middle pair or a pair above middle pair. If you have top 2, and the bottom card pairs, you have only fallen behind people with overpairs or bottom pair. It's much worse on the turn. In addition, if you have top 2, and a card below yours comes, it can't have given someone a higher 2-pair. If you have bottom 2, and a lower card comes, someone with TPWK could have jumped ahead of you.

Because you don't need to worry nearly as much about giving people a free card, top 2 is a better candidate for a slow-play than bottom 2. I almost always play bottom 2 aggressively, but I sometimes slow-play with top 2. It is very comfortable to slow-play AK on an AKx rainbow board despite the possible gutshot broadway draws.

Top-and-bottom is between the two.