Either the Chromes in their light gauge, or La Bella 760L 43-104. The Chromes have a lot of new string zing that quickly fades to worthless thump.
This has not been my experience. I liked them right away, but liked them more as they mellowed. I play fingerstyle with a pretty bright tone and felt like the broken-in chromes required less aggressive EQ than the rounds I was used to.
As far as tension goes, I was used to .045-.105 Dunlop rounds, and went to .45-.100 chromes and found it to be an easy transition. The .045-.105 Rotosound 77 flats I've tried since felt like bridge cables and came right back off.