Depends on how you look at it!
William Wallace was the first hero for battling the English - unfortunately he lost! So that would leave Bob the Bruce who gave the English Edward II a battering at Culloden. Download the lyrics to "flower of Scotland" for further info!!
Loch Lomond has the biggest expanse of water in Scotland Loch Ness has the largest volume of water due to it's depth and William Wallace was Scotland' s hero before Robert the Bruce who beat the English King Edward at BANNOCKBURN in 1314 not Cullodden which was the Jacobite battle of 1746.
Efenevey is either on the wind up or missed a few lessons in history at school.