Differences between pokemon mystery dungeon red / blue rescue team? - pokébase pokémon answers

Since mystery dungeon red and blue have been confirmed for wii u, I was planning on buying it. However, blue is more expensive than red because blue was the ds version. So, to help me decide on what one to get, I wanted to know the exact differences between each game. This includes graphical changes (if any) items, Pokemon and maybe even glitches.