Loki is definitely worthy of the memes unlike Thor and he's actually getting his own show, further building up his character development. Thor could be said the exact opposite: his character development had many ups and downs I stopped counting so personally, I feel like Thor is a messy character both literally and canonically. Thor had his own two movies and movies with the Avengers sort of closing any gaps or leeway to make him a loveable character per se Tony Stark or Captain America; even Bucky and Sam Wilson are relateable/loveable characters(I don't know about Wanda, maybe she relates to sad viewers).
Loki, even before Ragnarok, was a likable/relatable character. It was just the Thor movies, in general, weren't the best, especially compared to the Iron Man movies released before and after.
So all-in-all, Loki is better and he's only going to get better during his new series.