Eddie Izzard. In his hey day. Three times. Absolutely different league of intelligence and observational comedy. Watch his DVDs from back then, they are outstanding.
Makes me so sad now. He was genius.
Jimmy Carr... He was ok. A bit too much trying to be crude for crudeness sake and it was overpowering and just got a bit repetitive and crass. When he wasn't trying to shock for effect, he was quite funny.
Joe Lycett. Twice. Really nice, happy, silly shows. A bit of intelligent humour, but left feeling good vibes and would recommend.
Simon Brodkin. Saw online clips (of him, not when he was that buffoon Lee Nelson character) and those four or five online clips are his only good jokes. He rates himself massively and whilst he tries to sell it as self deprecated irony, he truly does think he's the dogs danglies and it is so apparent it makes you borderline dislike him by the time the act is finished.