Quad 21L vs NHT classic three vs KEF iQ5

I currently have a music/HT system with arcam AVR 350 preout to Mac 2275 driving quad esl in the front and the receiver driving Thiel 1.6s in the rear and no center channel. Sub is a velodyne DD12. I would like to separate the ESL from the HT by replacing the fronts and rears with Quad 21L, KEF iq5 or NHT classic 3. They are the same price considering the stands for NHT.

Which would be best for this application?