For War of the Roses the Peter Pig "Bloody Barons" set is my favourite, it is designed for 15mm, but could be adapted, its simple and has the flavour of the period, I have compared it to WHAB and Hail Caesar and it does benefit from being specific to the period, with plenty of "flavour enhancements" such as late deployments and in the pre-game set up you can mess with the loyalty of the opponents army.