4 stroke C or 265C?

What do you guys think is the tougher of the 2 classes? i race "B" around here at local races and do really well but i figure i will drop down to one of the C classes for nationals in Walnut, IL. i just kind of wanted som info on what is tougher one and wat is the easier one. thanks

[prepracing]

I would say 4 stroke C has more competition simply because there is a much higher number of entries in that class