Something like DA:O, with the large world and focused plot, but lots of side quests, many of which relate to the main plot. Excellent characters and dialogue, good mechanics, and a cluttered inventory. Yeah, it was a bit of a pain, but I prefer it to a ME2 or DA2 inventory system any day.
DA:O in my opinion is one of the greatest games I've played in a long time, with the exception of the dragging on of some parts (Mage tower *Cough*Deep Roads*cough*). The controls worked well on the PC, it wasn't a button spamfest like its sequel, its characters and dialogue were brilliant as always, and whilst its story was highly stereotypical, it was done that well the I honestly didn't care. Innovation is cool, but only when it works.
I also despise dialogue wheels, morality systems that cut options off based off which morality you are, and having a shared cooldown.
I also like lots of abilities to use, preferably each of them useful.