Well I'm sold on the milviz model, but depending on release dates I might purchase the captain sim model aswell. It's nice to see my favourite aircraft getting some love.
Looks like captainsim's 737 base pack is nearly complete as well. (Here is some screen shots:http://captainsim.com/products/x737/200/vc.html) I haven't really flown a captainsim airplane in a long time but I've heard that their 707 was descent, so it will be interesting to see which of the 3 will be the best.