Re: Intermediate sailing class or dinghy class?
I'm a firm believer than nothing teaches basic core sailing skills like dinghy sailing. Feeling a dinghy respond to every movement of the tiller, every trim of the sail, every puff, etc. is an awesome thing and your body will be able to tell what's going on at the slightest change in wind direction, if you're pointing too high, sheeted in too much or not enough.
You will learn/improve faster and for a lot less money.
When you move up to a keel boat, those sailing skills acquired on the dinghy have become second nature and now it's more about learning the keelboat systems, docking, engine operation, etc.
And in my humble opinion, it's a lot easier to focus on those new areas when you already have a good knowledge of sailing.
In any case, whatever you choose to do, the best thing to do is too spend as much time on the water as you can.
Everytime you go out, you will learn something, no matter what boat you're on.
O'Day 30 - Stuart, FL
Oceanis 411 - South of France