I have 1 of each. Blow it away? It depends on what one is trying to achieve. The 15 in the 200c gives me a little bit 'fatter' lows and obviously can be louder. Most of the places we play/ed, the 100 is sufficient and substantially lighter(we don't mic amps-no need)and since all our gigs are one-niters, ease of load in/out matters. Especially to 75 y/o me.
The other obvious difference is that the 200c has extension speaker capability. One of the main reasons I bought it first(of three Rumbles: 40, 100, 200c-all v3's). I also had a 112 extension speaker I sold 'cos it wasn't getting used. The 200c/112 sounded amazing but there was only one place I could justify taking the "stack" and we don't play there any more(closed).
If I was starting over, knowing what I now know, I'd have gotten 2 R100's-1 for most gigs, daisy chained when "necessary" and having identical 'backups'.
As it is, I
have been known to daisy chain the R100/200c.