I will lend my extended knowledge of five games played so far to this list . A top ten would mean all models I have except one so I'll do a top five.
1. Santiago Ortega, this man is a wreckingball if you get some good triggers off, he usually kills whatever he point at.
2. Witchling Stalkers, I love these little fellows, I have only got up against ressers and arcanists so far but they have always come in handy. Well worth the points.
3. Austringer, I love the fact that he doesn't need los. Overextend to kill him or let him be, wonderful!
4. Executioner. Yes he is slow and he probably won't do much usefull when we get more experience in playing but so far he has been a wonderful addition to the crews I have taken him in. And the model is awesome!
5. You know what, this just became a top four. I have played Nino once and he got killed by cassandra turn two, Fransisco usually dies as soon as he commits, my hounds have yet to capture an object, Papa Loco blew up three of my own models the only time he have been fielded (my first game) one of them beeing Abuela who had yet to do anything that game. Samael and the witchling handler have also seen play once each where the handler killed a bête noir (but it seems we read the rules wrong on this) and Samael got his butt kicked by a slit jugular trigger from Seamus after dealing nine wounds to him with his flaming bullets... damn you hard to kill!