To add to what proflational said, note that sacrificing Size gives a lot more ability points than the others. Just keep sacrificing and stay at level 1 or 2 (or 10 or 20, because I like multiples of 10).
Not 0, since you should keep at least one stat point in a "main" stat to make the Strange Fruit bonus go to the stats you want. Don't worry about increasing the ability tree for the stat you like the most. They're mostly disconnected mechanics, just grab what's useful.