I actually liked both of them : p But I would pick Goldberg too. I mean yeah I was a wcw fan growing up, but at the time Goldberg was like new and exciting, and he felt like a big deal. Like he was a machine that everyone was excited about.
Lesnar was awesome, had a really cool finisher and theme and persona and all, but I mean he really felt more like a really big bully : p Kinda like Scott Steiner but actually cool and interesting : p