Henri is correct again
In my experience the sennheiser works great on cabs, in cabs and behind cabs (mess around with placement for some different sounds
In HIs name
BK
If you don't have a very large mic cabinent you may want to pick up a few mics.
I personally like the Electrovoice 635-a which is an dynamic omni. It works well on distorted guitar in my opinion. You can pick one up for about $50 used.
The shure 57 I don't really like for guitar but it is very versatile in terms of other instruments and will work on guitar. $50 used or possibly less if your patient
Alot of people like the studio projects B1 for clean tones. I don't do much clean stuff so mine doesn't get much use but it works well for acoustics. $70-80? I think new?
That will get you 3 mics (2 dynamics and a condenser) within your budget of $200 that will all shine on certain applications. Since there is no one "best" mic this is the route I would go for your limited budget.