Addressing your first point: I'd argue that Bdog's chamber is top 3 or at least top 5 in NA this year. That's more than just good, he's a top chamber.
Second of all, saying Bdog's jett is mid is a little misleading and I'll tell you why. Stats are insanely misleading, especially when you only look at the past 60 days. Bdog had an extremely bad series against TSM, and that dragged his stats down by a lot. Specifically, his KDA on jett. Previously, his jett has been amazing and using only a few games in this vct (where he only had one bad match with it) to assess his jett, makes no sense what so ever.
Third of all, your point about Mada being the best raze in NA is valid, but we are comparing the impact of mada and bdog as players not mada's raze to other raze players, so you're point here kinda falls short.
Your worst point is saying Mada map mvp'd 4/5 of the last maps. 2/4 maps mada match mvp'd, bdog actually had more kills. Making it seem like mada was a hard carry when bdog was up there with him really doesn't bode well with me.
Mada is more flexible than bdog, I agree.
All in all, I do agree that mada is the better player. However, only very slightly. In terms of impact, they are very close; mada was the great entry fragger while bdog was the guy who would clutch up or get the important kill when you needed him the most. Also, for future reference, don't use stats like match mvp or KDA as your only point; if you do, at least give more context so it doesn't seem like a player is worse or better than he/she actually is.
I'd love a reply, always down for a good debate :)