[Isura]

A_Plus,

I have no idea what winrates are sustainable for other players. But the games are very beatable. I think preflop hand selection doesn't have a huge direct impact on your winrate, but it does effect the difficulty of your postflop decisions. It is easier to play a TAG style, and I believe this style is most profitable for a majority of players. Passive lines are not very useful at small stakes because your opponents are so passive. Aggressive poker is winning poker.

The AK situation - I would reraise BIG preflop.
Pairs - Out of position in HU situations, I sometimes fold small pairs. But in position, or with other callers, they are worth seeing a flop for a standard raise.