I believe Doyle when he says he is happy at Ipswich, you can see what it means to him when he wins important races for Ipswich. He is a honest guy who clearly likes his employer and wants to do well for them.
Personally I think Rew has alot of improvement to come, he had a good season in general. Howarth has no improvement left so Rew could well be good value on his current average