Is pokerstars without a bonus better than pokerroom with a bonus?

[thesharpie]

I'm playing 2/4 SH and I have a choice to play pokerstars without a bonus, pokerroom with a bonus, or absolute with a bonus. I don't have any rakeback, maybe I could open a pokerroom skin and get rakeback if that works out best.

I think I read somewhere that pokerroom with a bonus+rakeback was comparable to pokerstars with no bonus due to pokerroom's [censored] rake. It seemed like whatever BB/100 you gained from the rakeback/bonus at pokeroom was almost negated due to pokerstars rake structure. I couldn't find the page I was looking for but if anyone can post the rake they've paid over so many hands at pokerroom or absolute maybe we can compare. I have 7830 hands at pokerstars with 546.50 total rake paid, average players at the table is 5.3.

7830/(546.5/5.3) = ~1.32

About 1.32BB/100 in rake paid. Anyone know how accurate this is due to the smallish sample size?

Also pokerstars is probably the softest site so that has to be taken into consideration.