You have asked a very tough question. As you have discovered, there are a lot of opinions. You can mic a steel string acoustic with one small diaphragm condenser, one large diaphragm condenser, a pair of either one, matched or unmatched, or one of each. There are a boatload of techniques all of which work for somebody. The limiter is the budget, in this case $200, the guitar itself, the player, the room, the material, the mix, and what you intend to plug said mics into. Most, but not all, agree that a cheap dynamic is not the first choice.
All of us can name $1000+ mics that rock, but that's not where the budget is at. In your price range, I like the Marshall MXL603, but *not* the MXL990, which is more difficult to position, due to its larger housing. I also like AKG C2000B, which is a very versatile cheap workhorse good for a lot of stuff. All you're going to get here is opinions, a lot of them.-Richie