Common preflop situation I don't really know what to do with

[Mr_Blonde]

Not a biggie, but this kind of thing happens all the time.

Standard 3/6 6-max table. UTG limps, CO limps, you're on the button. Let's say UTG is donkish and CO is pretty decent. What do you do with:

1. A9o
2. A2o
3. KTo
3. 98o

as your standard play?

FWIW I'm usually around a 27/19 player.