I've never used the 2-7X FF-II, but think highly of the 3-9X version. The only concern I have with the 2-7 is the 1/2 inch click adjustments vs 1/4" on everything else.
Right now I'd go with Leupold, but would like to see one of the new Zeiss Terra's selling at about $350. Not much more expensive than the Leupold