Since you like Good looking graphics.
I am suggesting a few RTS isque RPGs. I have loved playing over and over.
I suggest Looking intoHeroes of Might and Magic V + 2 expansions.
Also checkout
Might & Magic Heroes VI [Over 200hrs of gameplay, a LOT more complex level up mechanics]
King's Bounty: The Legend [Combat and levelup mechanics r simple for all KB games]
King's Bounty: Crossworlds
King's Bounty: Armored Princess