As others have said there is no "best", just best for you and your needs/wants.
I'm a big fan of Apeks, reliable, simple, easy to self service and great performers.
If you don't need two hp ports you can't go wrong with a DS4/XTX50 set.
Personally I dive Apeks FSR first stages as I like two hp ports, I now use SP seconds G260 and G250Vs. I think the G260 is a better second stage than the XTX range. I self service so mixing and matching is not a problem.
If you don't want to mix and match I'd recommend the DS4/XTX50.
There are many good regs out there and the difference in performance is almost negligible. Buy what you can get serviced easily, like the look of and that suits your diving conditions.
Personally I use a Perdix, it's just a dive computer, it's a nice size, robust, I can see it and can use the buttons wearing dry gloves.
If you want more info please ask away, happy to help. Cheers.
PS I don't care about your spelling, I can still understand what you're saying. I'm an idiot and can only speak one language, you're smarter than me.