A maxed level 110 range tank with turmoil probably. 75 attack and strength, 99 range, 99 mage, 99 def, 99 hp, 99 prayer, 99 dung, 1 summoning and pretty much 99 everything else.
I have had every type of account except a skiller. I don't want to have a skiller though... But, to answer your question if i could have any type it would be a maxed main. All 99's, I currently have a maxed combat -summoning. Those accounts seem like they'd be the most fun.