Well, the only series that I actually own is the Assassin's Creed series, so I suppose they win by default. I would argue that they just keep improving, but I preferred Assassin's Creed II to Brotherhood. Although I do enjoy the multiplayer from Brotherhood.
I used to have most of the games in the Tony Hawk and Guitar Hero series, but I'm not going to try and argue them as the best series ever, considering that they both took a huge dive in quality towards the end. Also had a lot of Smackdown vs. Raw games, but again, wouldn't argue them as the greatest game series.
I own most Lego games, do they count as a series? If so, then I may nominate them, as they are really fun and they do keep me entertained for quite some time.
Upon reflection, none of these are amazing, but I can't actually think of a series that I consider to be the best ever.
I used to have most of the games in the Tony Hawk and Guitar Hero series, but I'm not going to try and argue them as the best series ever, considering that they both took a huge dive in quality towards the end. Also had a lot of Smackdown vs. Raw games, but again, wouldn't argue them as the greatest game series.
I own most Lego games, do they count as a series? If so, then I may nominate them, as they are really fun and they do keep me entertained for quite some time.
Upon reflection, none of these are amazing, but I can't actually think of a series that I consider to be the best ever.