I'm typically chasing more taste experiences than heat, and I really like to make my own stuff from the garden, but here are some of my staples:
Nando's Peri Peri-nice heat, citrusy and versatile. Make a shrimp scampi or a fish dish with this one-wow!
Walkerswood Scotch Bonnet-keeps the fruity flavor of the scotch bonnet and adds other flavors such as thyme. A nice Caribbean sauce.
Walkerswood Junkanoo Sauce-a good, peppery, hot Caribbean flavor
Some of Melinda's sauces are not so good, but I really like the black truffle ghost, ghost pepper wing sauce, and ghost pepper sauces. Their Trinidad Moruga Sauce is very good as well. The black truffle ghost has become a staple in my chicken salad. I use about 50-50 mayo/black truffle ghost sauce, and some diced celery and diced pickles.
That's all that is coming to be at the moment, I'll pop back in as I think of more. I'm really looking forward to getting my hands on some Bertie's sauces at some point. I hear really good things.