Rank the characters
Mongrels obviously has a very mixed variety of characters and each character has their own quirks. But some people obviously like some personalities more than the others. Since the characters have such strong personalities, it is really easy to have differing opinions, but there might be a consensus.
Just rank the regular characters, with your favourite character at the top.
Nelson, Marion, Destiny, Kali, Vince (and if you want, Gary, since he is a regular).
1. Vince
2. Marion
3. Kali
4. Destiny
5. Nelson
Of course that isn't to say I hate Nelson, I just like the other characters more.