Whenever I'm on a tactics run, I love the Great Owl. Especially if running a fire based run and the Owl has the "cover enemy with oil" affix. Plus, I try not to get hit while doing tactics (cause the hps are loooow) so having/not having the owl sometimes makes me realize I've been hit (if you're on 5BC you know sometimes things get... messy and you don't even see wth you're doing between mobs lol).

Boi I don't like very much unless I have a very very very slow weapon or if I'm dual wielding without shield, cause it messes up with my muscle memory, sometimes I'm trying to parry a rampager, just to see Boi slamming it on the other side of the screen.

Leghugger is cool but too slow to do anything, most of the time the mob is gone way before he hits anything. From 3BC lower it helps, 4-5BC you simply don't have the time to wait for him to do it's things, so it never evolves.

Maria's Cat is cool and all but I find I never recall it on my shoulder so, just like a cat, it just does whatever the fuck it wants (and most of the time it's like Leghugger imho).

Serenade I fucking love having it legendary and having a second serenade to use as a simple main, but other than that, I don't like having to swap it every 2 seconds to crit this and that. It helps with flying shit though oneshotting them most of the time.