They'd completely flipped things over in the 2nd one, the puzzles and codes had been replaced with more dinosaurs, the music was always upbeat rather than slow and tension-filled, and the dark gloomy hallways were replaced with vast jungles. Having never played any of the Resident Evil games i can't judge on the similarities between them and Dino Crisis 1, which is probably why i can't choose my favourite, it swings towards number 2 though.