Yea, I'd like to have 98 thieving so I don't have to boost to steal from meilyr... that clan is on a completely different level than the other clans when it comes to thieving, considering that they can give plenty of bird nests.
Well, thieving is one of the more relatively easier skills in the game.
I'd say it's the easiest skill after the usual combat 99s (attack, strength, defence, ranged, and magic).