"Deposit/Re-load Bonuses" Vs. "Rakeback"

I have very limited experience with RakeBAck and am not sure how good it is compared to
a Re-load bonus...I know the answer is "it depends," but
would it
be a better idea to:
1. get 30% Rakeback for a site and just stay and multi-table there at, say $2/4 limit...
OR
2. get a Re-load bonus at one site, multi-table $2/4 to clear it, then get a re-load bonus at another site, clear it, etc.

Which is better? Bonus whoring or being loyal to one site while getting Rakeback???