Can anyone recommend some decent Jazz drums (preferably with alternatives, fills and focussing on brush kits etc) that work well with Stylus RMX. I've been looking at Big Fish Audio Jazz drums and wondered if anyone knew if these were any good or could recommend an alternative?
There are decent jazz libraries around although not all are in Rx2 or RMX format; so I would recommend always using them at original tempi and then you don't need to restrict yourself to RMX. RMX is a fantastic tool for many uses, but jazz playing needs a homogenous, authentic sound and any kind of rex-ing (slicing) or timestretching is often detrimental to that.
I use BigFishAudio's Jazz Quartet (not the Jazz drums the OP mentioned) and the two NuJazz Volumes. Great grooves with natural feel and enough variations to get you through a song structure. I can really recommend these titles.
The only BigFishAudio library I was partly disappointed with, is Latin Jazz by Pete Escovedo. It contains just one or two drum variations per groove and therefore you can't construct any natural sounding drumtracks for a whole song with it. I still wonder what a man with the knowledge of Pete Escovedo was thinking, when he did this limited library.