Artistic Fella was a very good horse and is doing an excellent job at stud in Australia. He is also a very attractive specimen of a horse. I would be giving him a lot of consideration.
I have a good feeling about Roll With Joe, good racehorse, very well bred, but as yet no progeny of racing age.
My advice would be to not get too carried away with how a breeding match looks on paper, what appears to be magic crosses, etc., etc. and concentrate on breeding to well bred, well performed, successful stallions that are compatible with your mare physically and pedigree wise (ie. degree of inbreeding).