IMO, the choice depends entirely on which model from each brand you're comparing.
In the $150 price range, I'd choose the Triggertech Primary over the Timney Std 700.
In the $180 - $225 price range, I'd go with the Timney Calvin Elite over the Triggertech Special.
However, at a 2.5 lb "hunting" trigger pull, you won't notice much, if any difference between these triggers. Any trigger from either brand set at 2.5# will be more than great. That heavy of a pull weight masks the slightly different characteristics of each trigger. You really have to go below 2# before you start noticing subtle differences between these triggers. I generally set my hunting triggers to 2#, and at that pull weight, I haven't seen anything that beats the Timney Calvin Elite, though there are a few that are comparable. Until you get into the uber high end competition triggers set for a few ounces or less and costing over $300, the Calvin Elite is as good as triggers get from my experience.
