AV123 Strata Mini's or Klipsch Forte 3 or 4

I'd look into the Volti Razz. Much better build than the Klipsch.

The Forte would be different, that's for sure.
I have a pair of the Strata Minis in my office system. They are a tremendous bargain under the right conditions ( smaller room, less dense recordings, and medium to lower volume). They're pretty laid back in the top end, and fall a bit short when placed in a large room (YMMV), or at high volume.

The Forte will likely present a more forward sound than you're used to with the minis. You'll gain dynamics and top end, but will lose the lower frequencies of the powered subs. Not sure if you plan to add subs with the Forte. 

I suggest you check out the Forte IV.  They are excellent.    I auditioned the III and liked them enough to buy them but they were at the end of production so I waited a few months and got the IV.    I've never had a speaker that shows changes upstream so clearly.   With good amplification they sound great and get better with better equipment.