I love Friedman. I remember being incredibly excited when I heard he'd got the Megadeth gig, as I was already playing his Dragon's Kiss solo album to death, and I was already a Megadeth fan as well. He has a very unique melodic style that's very individual.
I also rate Broderick from seeing what he did live with Nevermore. TBH though, I'm more interested to see what he comes up with himself, rather than how well he plays someone elses solos...