Marvel Universe, from what I remember, is pretty cunningly designed to make play "by the numbers" an interesting proposition. Unlike in Amber (IMO, at least), it is feasible to pit two characters against each other in a brawl without a GM.
To do something, you first need enough factors (strength, skill, or whatever is applicable) to beat the Difficulty. Then you need to spend enough Energy to beat the Resistance.
A key here is that you can Energy up to 3 times your Health stored up at one time, but regenerate only Stones (points) equal to your Health per Page ("round" of Panels, or player "turns"). So, things can get tense when you want to do more than you can do sustainably.
Suppose you start topped up with 9 Energy, but you're spending 5 per Page and getting only 3 back. After 3 Pages, you have only 3 Energy. Spending all of that is not enough to keep you from getting hit. Losing a point of Health means you regenerate only 2 Energy (up to a maximum of 6).
There are a couple of pages giving benchmarks for all sorts of stuff in general categories -- along the lines of the several pages giving FASERIP benchmarks in the original Marvel Super Heroes RPG.
On one level, I like how neat it is. On another level, I find that it draws my attention more to the mechanics (especially relative to the fast-action, "just roll the dice and see what happens", quick-and-dirtiness of MSH).