I also try to score with Black Orcs whenever I can. First of all, it brings in some much needed SSP for them, it often confuses opponents (bring a BOB and a Gobbo down the field, and guess which of them will get swamped!).
In fact, opponents often only have 3 choices when you do this:
1) Cover the BOB, this takes at least 2 players (because of ST 4). This frees up the Gobbo (Stunty will get you out!)
2) As 1 but the other way around!
3) A mix which leaves both players a chance!
As for skills they all get the same 3 skills (I've never had one go over 3 skills as far as I remember) in this order: Block - Piling On - Mighty Blow.
Tackle, Guard etc go to the Blitzers who do just that - Blitz! Currently I have 4 BOB's (all Block, 2 w/PO), 4 Blitzers (All Block of course, all Guard, 1 tackle, 1 w/+MA).
Well, just my 2 cents
