There are many video games that have at least one sequel and can be called a series. Which is the best? Examples: Grand Theft Auto Gran Turismo Need For Speed Call of Duty Uncharted Guitar Hero Rock Band Mercenaries Halo Gears of War Killzone Dirt +others are there that aren't on the list
Final Fantasy has been the best game series for 20 years, but if they continue doing like they are now that will change. if Bethesda turns back to the old ways with The Elder Scrolls, then THAT will be the best game series.
SOLDAT is a great game. It's a unique side-view multiplayer action game. It takes the best from games like Liero, Worms, Quake and Counter-Strike and gives you fast action gameplay with tons of blood and flesh. Soldiers fight against each other on 2D battle arenas using a deadly military arsenal. www.soldat.pl/en/
I have to say Mario. I love almost every mario game ever made, exept for some of the NEW mario games, and the ones that have nothing to do with mario. Like Super Smash Brothers and stuff like that.