If you can get along with the color, Fender's FSR Antigua's a great basses. Quality is extremely high and with flats, these things really rock.
I would love one of those myself, but I don't think they are being produced anymore. Crazy about the Antigua finish though!
TO THE OP: Meh, MIMs get bagged on a lot, and I think some of this is unnecessary.
I WILL say that MIMs have been around since--what?--1990 I believe--and over the years they have undergone significant changes. My experience with MIMs is rather limited. I have owned two MIM Telecaster guitars (a 1998 and a 2003) and both were really good quality. In fact, when I bought the 2003, I was actually specifically shopping for an MIA Tele, but the MIM I found was on par with the MIAs I tried, so I pocketed some $$$ and went with the MIM. I didn't regret it.
At the same time, I have played several MIM guitars that I felt were sub-par.
The fact of the matter is that--
in general--MIA Fenders are going to have better QC...more consistent I should say. And (depending on the year of MIM) you are likely to get some better-grade hardware and electronic components with an MIA (though MIMs are easily moddable/upgradeable.)
Many people have said that MIM quality, particularly since 2008, has been much higher.
I was bass shopping a couple months back and played several MIM P basses, from various years. Some I thought were quite good, some were not so great, but I got the impression they were also not cared for and maintained as well as they could have been. One 2006 model had some neck issues with a maxed out truss rod (though this can happen on any instrument with a truss rod.)
The one I ended up with was a 1994 MIM P bass. I played the heck out of it at the GC where I picked it up and though conventional wisdom indicates the earlier MIMs were often not as good, this 1994 I scored is very sweet. Nice neck, takes a setup like a champ, not a single dead spot or buzz anywhere. Tuners and bridge may not be "the best" available, but they are fully functional. The thing plays and sounds great as-is, but I am still modding it a bit with a new wiring harness and jack, SD 1/4 Lb pickup, Fender chrome knobs (this model came with Strat-style plastic knobs which I THINK are stock to this year) a b/w/b pickguard and a cream pickup cover.
I'm only really making changes to it because I have an old P-bass copy project bass and I am moving all the MIM guts into that.
As it is, I would gig with the MIM the way it came to me.
Incidentally, I played 3 MIA P basses at the same time I was trying out my MIM and for ME there was nothing about any of the MIAs that justified the extra expenditure it would've taken to take one home with me.
Bear in mind--this is a sample size of ONE. I happened to luck out with a fine MIM. This surely won't always be the case.
One final thing--while shopping, I played a brand new MIM P bass in white with a maple fingerboard and it was a killer instrument. It was really, really good. I went with the older used one because I was specifically wanting a rosewood fingerboard (already owning a maple-board P.)
Good luck on whichever you find and choose. If you find a
good MIM, I think you'll be happy and you should feel no shame. But it might be easier finding a good MIA!