[willflyforfood]

To better answer your question, you need to tell us what type of riding you will be doing.

The 150F is a low maintenance trail bike.

The CR85 and 150R are motocross race bikes.

[Aussiecrf230]

If you like the idea of a four stroke and the rider is a little shorter/younger, then the 150R would be great.

It has the fantastic suspension of the CR85 as it is basically the same frame/suspension etc.

As ~ has said how are these bikes for size and how experienced is the rider?

I love my 230(after being tweaked) but would prefer better suspension.

If I had the extra money at the time I would have went 250X, but they are a little high for myself and I got my 230 cheap.
This can be overcome but it all comes down to dollars.