PRIVATE. I can't get away with anything in them :( Which is good! Because I'm not trying to cheat myself out of an education. In groups, I feel like I can sneak things by the instructor, and I'm not as confident I'm doing things correctly.
Actually, I'm really surprised anyone would do groups with 5+ riders! There is no way an instructor can keep track of 5 personal needs all at the same time and have enough lesson time to address all 5 people.
I did enjoy having "groups" when I first started jumping. It was just me and one other person. We mainly just worked on certain combinations and tests, so sitting/watching time was minimal. Me and the other girl actually had very similar riding issues, so I learned a lot from watching her as well. The instructor was great about making sure we were both getting things before moving on. When I moved on to privates is when we started jumping full courses. I don't want to sit there for 10 minutes watching the other's course when I can be riding during that time.
Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion to reach for the stars to change the world. ~Harriet Tubman