For a non-Gore pant, TNF makes a great pant at a great price. Take a look at the Freedom Pant. There are two versions. One is a standard shell, and the the other is an insulated version. It is burly. It has well placed vents. And it fits great. One bonus is that these pants are available in different lengths (standard, short, or long). Instead of using Gore technology, TNF uses its version called Hyvent.
I have the standard version. I live in California and don't need the insulation. I can vary my layers for colder conditions.
The standard pant costs $139, and the insulated version costs $159.