greg kaye
Explorer
So how many ASI +2s/feats would one level be worth if, for instance, your highest roll was 14 and your strongest racial mod was +2?The only really important ASIs are those in your primary stat. And it's never wrong to spend your L4 and L8 feats on ASIs. Which is the boring way of doing it but power-wise unless you're a martial character or something like an illusionist (Silent Image At Will is such a good thing for a specialist illusionist) it's almost always the best choice. Dex, Wis, and Con (and their associated saves) are almost always useful with the other three saves being a lot less important - and every single class (sit down L14 monk) is proficient in one high priority save and one low priority save.
Would getting to 20 in your primary stat be worth a level or would you also want something more?