Aoe tank.

Hello, ive been playing this game alot recently with friends and im just wondering who the better tank class in the game, and ive only played the marauder, would the Templar be better for tanking?

Nah, stick to Marauder. They get tons of HP, and Elemental Resistance (Troll's Blood and Diamond Skin). Also, head south and then east on the skill map. Grab Golem's Blood, and Thick Skin. Steel Skin, and Iron Reflexes are also a good idea. If you get Iron Reflexes, grab the Grace skill gem, eventually.

Pick up some damage nodes on the way, too. If you neglect your damage too much, the game will become very difficult. You can get around this completely, by just grabbing a bow and poison arrow. In that case, don't bother getting any damage nodes, but pick up some dex and also move speed.

Wow, you'll have Troll and Golem blood, and Thick, Steel and Diamond skin. =P

Well, if you want to be an AoE tank, tempelar could be be a better choice if you want to use totems to spread out your area of skills or if you want to be a tanky AoE-caster. Also if you want to buff your party with ton of auras I'd recomend going with a tempelar. Still, if you want to be a pure massive tank of tankiness, you should def. go for a marauder.

As said above, the templar has MUCH better potential to be an AoE Tank, the marauder is the better plain tank but with much lower potential AoE damage.