lol, i was totally going to make fun of this poll then I saw I got name-dropped so I can't not send it love
Because of the format of Magic Duels, i think it solidified how much I love aggro and burn. Because you can TIME OUT, i much prefer a deck that I can play quickly, but that my opponent has to be VERY careful about making perfect decisions lest he be open to be burned out on a faster clock than he/she thought. I find aggro/burn really abuses this cuz you can't really misplay against Mill or even Control. But you can TOTALLY slip up against Aggro. Sometimes i am AMAZED at stuff that opponents allow through (by not blocking). I think they should spend more time thinking about their blocks but because of the time limit, they don't. Therefore, Duels has made me really like aggro/burn before I even realized how much i like this.
in real life i don't like these decks at all. i much prefer midrange-y, lifegain-y, Vigilence-heavy decks. At one point a long, long time ago, I got into a hot and heavy 3-way with Hakeem and Beast. I played some kind of Azban lifegain deck. That's TOTALLY the kind of deck I love playing in real life. But Duels has changed that.
Not only because of the abuse of time that I mentionned above but aggro is FAST and i want to be playing fast games for gold online.
It's funny that my answer is actually pretty similar to Squider's as well (prefer Midrange but play more Aggro in Duels).
Also I think I'll get lynched for this but I think i prefer the Duels of the Planeswalkers games of the past because they MADE me play archtypes I never would have played otherwise. With the random deck generator, that was really the most fun I ever had playing Duels so far. It was perfect. This game is obviously better but at the same time, i don't explore as many decktypes. My Spike won't let me. Before you HAD to play Dragon decks and such.