Generally, we'd want to stick to the "GMRS" frequencies from channel 15 to 22, since all GMRS radios can transmit on those channels regardless of power level.
In Eagle River and the Valley, channel 16 probably gets the most use between the repeater here and the Golden Eagle folks in the Valley. Channel 20 gets more activity on weekends, particularly amongst offroaders out on the Moose Range trail system in Palmer.