The oldest: Micro Maniacs, still have it, my most favourite racing game in the whole world. Quite the original release for the PS1 from Codemasters... it's a pity I sold my PS1 years ago and yet kept hold of the game.
The newest: Duke Nukem Forever, I felt misled buying this game. I thought that shit was going to be awesome but... failed to astound me.
Verdict: I would prefer Micro Maniacs, without a doubt. Insane story premise (mad scientist plans to solve the universal resource problem by shrinking the whole population to the size of your index finger, what's not to love? FOR SCIENCE!), memorable and quirky characters each with their own awesome abilities, bitching race tracks... I could go on.