Struggling to choose race for Horde 5x Shaman group! Advice appreciated

[nodoze]

Originally for PVE Horde Shamans I was thinking Troll Beserking was best but after reading/watching multiple guides it seems like Orc may be better now that Blood Fury was been expanded to help spell damage also (plus Hardiness/etc). Additionally considering the Troll Racial needs you to be at or below 40% health to get the most out of it and has a 3 minute timer while BloodLust has a 10 minute cooldown a Horde Orc 5S team should be able to pull off:

• - every 2 mins Team Bloodlust: by each Shaman in the 5S taking turns to chain the 10min cooldown;
• - every 2 mins team Blood Fury: each Orc Shaman popping their own cooldown;

Seems to be more optimal than trying to mix/match a 3 minute Beserking timer that you need to be damaged to take full advantage from. I am not sure if on-use damage trinkets favor 2 min or 3 min frequencies but that would be something else to factor in.

Edit: Another factor is that Orc females are not as hideous to look at compared to Trolls/etc ;-)

I think Orc is the best choice given the racial applies to spell power.

I still think Space Goat it better, but playing a 58 Ele Shaman in the beta is quite painful. Mana usage is just so brutal and you need to drink after just about every mob (at 70 all these problems seem go away and Ele is pretty awesome). Granted I can't multi box in the beta, but leveling a SG team from 1-60 seems like it would be brutal.

Why do you think Draenei (Space Goat or SG) is better than the Horde options?