From 2011 - 2013, CF fWAR ranks:
1. Trout (21.1)
2. McCutchen (20.4)
3. Ellsbury (16.3)
4. Victorino (14.1)
5. Gomez (12.6)
6. Bourn (11.9)
7. Kemp (11.2)
8. A Jones (11.0)
9. A Jackson (10.7)
10. Granderson (10.3)
You could definitely get Victorino for that package (probably could get him for 2 of the 3) but, would you want him at that cost? He's 33 and probably isn't a center fielder anymore.
All three for anyone but Trout or McCutchen would be an overpay, but I guess it depends on how bullish you are about Hamilton and Winker.
Jackson has a couple pluses in his column: he's 2 years younger than Gomez, and is a true lead-off hitter, however, he's also had the luxury of hitting in a pretty volatile Tigers lineup.
Of those on that list (not named Trout or Cutch),I think Gomez is the best. He's 28, under team control through 2016, and is seeing steady increases in both offensive and defensive play. He's also doing it for the Brewers, who haven't been a good team since their playoff run in 2011.
Gomez WAR/OPS in the last 3:
2011: 1.9/.679 (split time with Nyjer Morgan)