I've never met a lovey-huggy trainer; owners, yes!
The trainer I use is also non-famous, quiet, absolutely consistent with horses. He goes to clinics with Leslie Desmond, and is totally humbled when he gets back. Humility is good! When he had problems with my hard-headed filly, he came back the next day with several options: he didn't say, This Is Going To Work. That's what I like about him-- open-minded to the fact that horses aren't all the same, have different reasons for doing things, and different temperatments. (He was perfectly successful with my filly. The first day was getting to know her, and pretty sweaty and frustrating. The second day was slow, steady, hardly broke a sweat, and she was so pleased with herself, loading and unloading with confidence.)