Most of my experience is with the following:

Kenyans: 50/50. If you handle them from birth, they are really docile. If you wait a couple of months, then they are skittish.
RoughScales: More skittish than kenyans.
Indians: Only have 3 of these. Bite me every time I try to feed them. Not aggressive at all...just one heck of a feeding response. Let go as soon as they know I'm not a rat.
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Travis Rose
1.3 Rough Scale Sand Boas
1.2 Indian sand boas
13.33 Kenyan Sand Boas
X.X Nervous Rats
X.X Paranoid Mice
0.2 Dogs
0.2 Cats
X.X Fish
0.1 Very understanding wife
2.0 Future Snake Lovers