Studio monitors extend over a $100,000 span - this is a silly question!
If I had all the money in the world, I probably would get Barefoot MM12s as my mains that would be a good 10' away from me, and use a smaller set of nice nearfields for closer work - maybe a nice set of three-way PMCs or ATCs. But considering we're probably only talking a budget below $1000, it really depends on what works best for you. Studio monitors are very personal, and everyone has biased opinions towards what they own/use or hear that famous people use. It comes down to auditioning them, and seeing which ones you think you'd work best on.