[troy_dietz]

At this point, filament is filament (for the most part).
A $25 roll of PLA will act almost exactly like another $25 roll of PLA (the same can be said ABS and others). Several filament brands can be traced back to a single factory in Asia. As long as the suppliers follow standard processing and storage procedures (drying pellets before extrusion, vacuum sealing after spooling , etc) you should notice very minor differences from brand to brand.

Like many others, I prefer to print in PLA when possible and PETG when extra strength is required. ABS has become a bit dated, but it still has its uses.
As for filament brands, I've been particularly fond of Hatchbox for their fast delivery through Amazon and consistent colors. It comes down to personal preference for the most part.

As a warning, Carbon Fiber filled filament is often marketed as "stronger" and "more durable" than traditional "pure" thermoplastics. This is usually not the case. While there are small finely copped bits of carbon fiber in the filament, they are often nowhere near long enough to add any justifiable strength or rigidity. That usually comes from a better formulated plastic base and not the carbon fiber. (machines that lay a continuous strand of carbon fiber are obviously an exception)

Edit: I have the Monoprice Maker Select V2.1 (A rebranded Wanhao I3 V2.1) with a glass build plate.