I own all 3. What is the k rating on w90? The sgs160 flowers well and comes close to the xgs190. Also have a r/w75. Use mostly COB's now but these will crush most anything out there in conventional led panels. Have had these over 2 yrs with no issues. Probably need to rid myself of a couple. No upgrade needed or wanted by me.
Running a w90 4000k, an Optic 120 vero 3500k and a Northern Photon 190 with 3500k 90cri Citizen COB's. Bing, boom, BANG! Damn, that Photon is bright.