You can't really compare the two that easily... Sonic Colors is an Action/Adventure game, while RuneScape is an MMORPG where you level up many skills. Deciding which is better is based on your opinion.
Sonic Colors.
SMG2
Sonic Colors happened in 2010.
Sonic Colors. i don't know the other one, so it's not even close. Sonic's the best anyway.
Sonic Colors
Both are great games! BUY 'EM NOW! :D
They are both great games, but i'd say sonic colors
A Runescape character because they can use Protect from Melee to negate all damage from Sonic.
You can't compare the two.
Sonic Colors was created on 2010-11-11.
There are Sonic Colors toys at Toys-R-Us.
Sonic Generations