Interesting question, LOL. I’m kind of surprised you don’t already have your original Dawa maxed? I maxed mine almost 2 years ago. But I’m guessing you had better projects to work on. I started off with mostly 2s and 3s so… well, you know, work with what you’ve got.
Currently my leveling strategy is kind of messy.
If I have 5* heroes that I intend to use for wars or main teams, I focus on those first. If I don’t have the resources to take them past 3/70, I might focus on a 4* hero instead. If I’m lacking the resources to ascend any 4* or 5* heroes, I start working on my 3s (that I’ll probably never actually use, but I’m a collector).
If I get some goofy 3* Valhalla hero that I don’t already have, I’m going to keep it and eventually level it… just because… or if I have a 3* hero with costume, I’ll keep two copies and fully level up both, that way I have a costumed and non costumed version.
Waste of roster space? Perhaps. But to me? I could be completely off base here, but I kind of got the impression that one of the main purposes of E&P was obtaining new unique heroes. Whether they’re good or bad. That’s a big part of what has kept me playing for this long (that and my lovely alliance of wonderful people).
Gotta collect them all.
Realistically speaking, I will not ever spend enough or live long enough to collect “them all”. But it gives me something to aspire to in the meantime.
So yeah. If I’m bored and have nothing better to do, I will max at least one of each of my 3* heroes. Even the bad ones.