For the price you pay, I totally agree with 3notesabar about the MIJs......bang for buck consistency.
Not to be a wet blanket, but I've personally encountered some minute problems with the MIJ pickups, but it's more of a personal opinion.
Do try them out, and if they're no biggie to you, then it's fine and dandy.
I personally feel that MIAs are also really really consistent in tone. They should be, considering the asking price of those things. :?
As for MIMs, I find that they're overpriced and are very inconsistent.
I've tried a fair number of MIMs before, and I've come across a few stellar examples....the rest are lemons.
As mentioned before by others, let your own ears decide.