When I first read the beta character creation, the Titan sounded most appealing to me. After playing in it I fell in love with it. When destiny came out I re-created my Titan and continued to play it. Later I created the other classes and I like their play style too. However, since I played with my Titan the longest I have a little bit of a biased view on them. Plus I like the noble lore Titans have behind them.