Top stitch and metalfil needles are the same needle design. I recommend you use those sort as they have a better eye to accommodate all sorts of thread and a flange at the back of the needle for the thread to lie in and that means less resistance when sewing. I use a size 90/14 or sometimes a 100/16 as I do tons of heavy quilting. Use a lighter needle if you are quilting on delicate fabric.
As for how often to change the needle - I put a new one in every time I start a new quilt and you should definitely change it if you hear a popping sound as you quilt - even if the project is not finished, as it is an indication of a blunt needle and you will get skipped stitches and trouble with bending and breaking.
As for the brand of needle- I generally use Schmetz,Bernina, John James and Organ. However, there are other brands that you might find suitable for yourself. Good luck with your selection.