Over the summer I was asking myself the same question and even had both of those sights at my house to test and see which I liked better. Here was my thoughts:
-For the CBE Tek Hunter, I felt the pins were too exposed and did not appear to be very robust. I was too afraid of a pin breaking or more likely, bending. Also, I thought the pins seemed a little darker when compared to the Spot Hogg. Otherwise I did like the build of the remainder of the sight. I just did not want to trust the pins holding up to twigs and branches poking at them.
-For the Spot Hogg Boss Hog, I thought it was well built. But I didn't like that it does not come with even a blank tape for the sight scale. It does have an engraved wheel that you can use with any of several computer programs in conjunction with your bow speed (or the use of the engraved wheel and some testing) to develop and get a sight scale printed off. But, I thought for the price I should be using something better than a printed piece of paper that I tape to the this sight (one option proposed by Spot Hogg when I called and spoke with them).
I came up with a third option and is what I currently am using. I orded a custom Black Hills Gold Ascent Ambush with 4 pins and a rear facing sight tape. With this option I could pick the color of the pins, size of the pins, mounting style, etc. and it only took about a week to receive this "custom" sight. Also, this sight comes with one blank sight tape and something like 54 pre-printed sight tapes with what seems like every possible bow speed for modern bows. So far I am one season into using this sight and I really like it. It is built like a tank and I am not sure I can break it. Note: Black Hills spend $'s on the product and technology not necessarily on cosmetic things. The corners or edges may not be as finished as a Spot Hogg, but I was ok with that. No regrets here and I would recommend this sight to anyone and will difinetely buy another when needed.