I like small yoyos that aren’t too light. For example I hated the airey feel of the marmot. I also like a h shaped yoyo like the messiah or protoge. I do like grinds. I also want it to be stable.
havent tried the mmn but… the skyline isnt too light it is as stable as heck, amazing at grinds and also smooth as butttaaahhhhh!!! but then again i havent tried the markmont next …
Markmont next or if you wait a few days, YYE is getting a shipment of y-factors.
OD is known for making a solid, heavy playing yoyo. Pyramatte/nickel plating with sodablast both grind well and they both have a slight H shape.
Then again…I’m biased. 
The markmont next is a solid heavy yoyo that can play at almost any speed. it’s very stable, and smooth.
The skyline is smaller, lighter, faster, and “floats” more than the MMN. I have used both, and both are good yoyos, so it’s your choice