The Forest is the most versitle speaker in Totem's entire line-up and can be paired with a huge variety of electronics and can faithfully reproduce nearly all sorts of music with ease.
The Hawk, while not as versitile - is a ridiculously good speaker when treated right. The McIntosh gear that you own would work well with either speaker as the Hawk tends to enjoy equipment that does not pose high damping factors. The Hawk can also be placed closer to the walls than the Forest.
Out of all Totem products, dollar for dollar - The Hawk is perhaps the greatest value and definately makes my recommended list, for whatever thats worth.