Yeah I reckon the drums in reason generally sound wack. You can say that there are some drums that sound good, but they doan compete with proper drums. I used to use reason drums when all I had was reason drums an you can get away with it if you fck with them a lot, but you can't have all your drums sounding fckd. I think the main problem is they are all very clean and don't sit together to feel like a proper loop. Anyway thats my opinion, some people like that style of drums, but I doan.
BTW I reckon getting drums to sound good is problee the hardest part of sampling to master an get right. It took me years to finally be happy with the way my drums sounded, an its the part of a track people will instantly have an opinion on. Most people can get a nice sounding loop but ruin it by having sht drums...