I haven't played DOA3 but I was obsessed with 2 for ages. I thought it was a great fighting game. Mainly because you needed to have really good reflexes to perform holds etc. and if you wanted to play the hardest diffculty, you needed perfect timing to be able to grab an opponent mid-attack and counter.

1 year later and I am the best Guard Impacter in Soul Calibur..ever!

Anyway, my favourite character is definitely Ein, but I can also use Jann Lee and Ayane.