so out of the 2 the LTD is probably the better quality guitar?
no, that's not what I meant. Having not tried the ESP or RR3, but having tried similar guitars in the same ranges, I'd say the jackson is probably the better guitar, but has a lower spec. If that makes sense, it does sound counter-intuitive.
Like if you compared a custom shop gibson les paul junior to an epiphone les paul standard (though not as big a difference in the jackson/LTD case).
EDIT: as i said, though, I'd personally try to get up to the RR5, I don't much like the jackson jt580LP trem, and I don't really like a bolt-on with a V.