how could anyone forget about mewtwo? or mew? but anyway, of the ones there, i must say deoxys...it's so far, the most difficultly impossible pokemon to get. plus, it looks so cool! and, nobody has one, so getting one would give you a major advantage because you could both show off and kick their butts... ho-oh and lugia can be traded over, and the rest can be caught normally, except deoxys. that's what makes him special. everyone has the legendary birds, or at least had a fair chance at it. but only a few have deoxys without cheating.