I don't own either but think the question really is what you want out of a bike. Ibis bikes are generally shorter, more conservative well rounded. Bikes like the privateer are on the more aggressive and long side of the spectrum. Ibis' dw link is going to be one of the better pedaling platforms...of any mid travel bike. The privateer 4-bar design will probably not climb as well but will (along with the long geometry) be suited towards going down. I have a friend that is a very good rider that would pick something like the Ibis because he likes bikes that are very efficient. I am the opposite, choosing bikes that look more "fun." As far as the seat angle it will be easier to have a stretched out roomy cockpit with the Ibis since the top tube is longer. The Privateer will give you more a more upright on top of the pedals feel . I do like steeper seat angles but also like more neutral angles like Ibis has for long rides with lots of pedaling. All comes down to you riding style and priorities.