I have discovered something quite humorous. When updating things in my spreadsheet I decided to go and calculate the value of Int. With 100 Int you get 14.6 mana / sec, which is worth about 90 dps if you are dumping that mana into consecrate.
The only other stats we have that produce that much damage per 100 points are Str and Hit. Every single other stat is worse for dps. So assuming you manage to need more mana, the best stats you can stack in order are:
Yes, Int is better than Expertise, Crit and Agility. If you already have enough mana to do a complete rotation anyway (which unless you are using exorcism or HW, you do) this doesn't really apply. There isn't a good way to use your excess mana if you are already Consecrating, but in a situation where you find you are mana shy, stacking Int is an excellent source of dps. If you need mana to fuel other abilities that are more efficient than consecrate Int is actually a better stat than hit, and by a substantial margin.
Be afraid Hunters, be very afraid.