Honestly…
GS2 has the best quality “low price"deal on their beginner bumper/barbell set. I really like the smaller profile Apollo MGT bumpers, that being said I’ve never received an order form them in less than 90 days (be prepared to wait).
I have used both Rogue and Pendelay/Muscle Driver, both are great to work with. I started with the Pendelay Hi-temp bumper & “CrossFit” bar set. I have (and continue to) beat the S*$p out of them & they take it no problem.
I like christiansfitnessfactory for everything but bumpers and bars (bars are not good Oly quality & the bumpers are brass insert which is not my preference).
Being a USAW guy, I have to suggest Werksan & Eleiko - you get what you pay for.
Finally - Sorinex: I have no experience with the company, but I’ve used their bars and really like their rack systems. Also after much deliberation my next bar will be either a six-shooter or the all-terrain bar.
Anyway that’s my experience in a nutshell - Cheers