I shoot with Rolleiflex TLRs, have an MX-EVS with Tessar, and 3.5E with Planar. The Planar is much sharper than the Tessar, and I've been very happy with it.
Been considering adding a Xenotar to the bunch (sharper than Xenar) as it has a slightly different look to it.
Will have to wait though, as I'm putting together a Hassy kit at the moment.
The Rollei TLRs are the best of the TLR. They invented the format, and know what they're doing. Super quiet shutters, light weight, and glass that is unequalled in any other TLR. The f/2.8s don't do anything for me, as I shoot mostly around f/5.6 to f/16 or f/22.
When you find one, spring for a CLA no matter what the seller says, and you'll have at least 50 years of trouble-free service.