I don't consider him a great actor. He is a great "personality" though. Always fun to see the character "Christopher Walken" onscreen.
It's probably a pleasure for actors to work with Walken because he'd encourage you to explore the space.
Think he could have had just as much success had he went the comedy route. The guy has hysterical comedic timing and range IMO. I always try to catch his snl stuff when possible.
he was strange as hell in "Things To Do In Denver When You're Dead." The scene where he tells Andy Garcia to suck him was hilarious...the look on the face of the guy that works for him was priceless.
he was so odd in annie hall. haha. he kinda creeped me out in deer hunter as well. he's played some weird roles later in his career. never seen any of the prophecy series, but i'm assuming they weren't very good.