12: If you tried the l'Hospital rule, you should have got
So the two troublesome powers stayed exactly as they were, and now there is an extra logarithm to make things even more fun. Definitely not a way to go.
If you checked on the scale of powers, you hopefully noticed that the ratios that could not be handled by the l'Hospital rule were done by sort of "term by term comparison", when powers were written as products so that the number of terms is the same in the numerator and denominator, then some comparison was used. Try it.