Right now I'd have to say Rivers is first, but Gates is right there too..hard not to choose him. Then probably Keenan Allen. After that it's a little tougher. I really like Hunter Henry. Gordon and Bosa look like great players, particularly Bosa...Gordon more looks like he is good, but might break out, and started to last year. Bosa broke out big time right away.
I also really like Jason Verrett and Casey Hayward.
All time it's tough too. Rivers and Gates are still up there. But Tomlinson is right up there as well. Those three along with Dan Fouts might be the best. Brees was fun for a year or two but not long enough to really be considered a Charger in the grand scheme. Going way back I enjoyed Kellen Winslow, Wes Chandler, Charlie Joiner but really only saw them when I was a kid and just becoming a fan, but boy was that offense fun to watch...I mostly missed John Jefferson who only played for them briefly but was exciting from what I heard. I don't remember Chuck Muncie playing much other than that he wore sunglasses that looked awesome (well as a little kid they did).

Natrone Means was fun to watch as well.