Growing up in Los Angeles in the 50's and 60's, we ran the gamut.
Tabasco: Works great as a flavor enhancer. I use it in everything: eggs, guacamole, bleu cheese dressing, spaghetti sauce. It replaced Kitchen Bouquet. Use the green on eggs.
Cholulu and Tapatio: My basic sauces. Tapatio seems to have a little more flavor.
Yucatan Sunshine: This one puts the heat in and that "strange" (unique?) taste of Habanero peppers.
Chipotle sauces: great for that smoked, chipotle taste. Don't have a favorite=make my own. Use in chili colorado, rice, carne asada, carnitas.........
Homemade:
Stew a batch of home grown tomatoes (quartered), one yellow onion, a teaspoon of fresh chopped garlic, a can of chipotles in adobo sauce (or 2-3 reconstituted, dried chipotles),leaves from about 12" of fresh oregano, a healthy pinch of salt and cumin. crush about 1/2 teaspoon of coriander seeds and chop about 1/4 cup cilantro. shred one carrot (finely). Stew well. Strain juice. Puree solids. Thin with leftover juice (add tomato paste to thicken). Add a touch of brown sugar to sweeten to taste. That's your basic sauce. Use for enchiladas, etc.
Oh, use a cast iron pot like a Dutch oven.
Hottest I've had: My favorite dish is Camarones a la Diabla. Had it in a small marisco place on Whittier Blved in Pico Rivera. Wife said I had tears running down my face, sweat running into my eyes, off my forehead and skull (I have no hair left), and all I kept squeaking (couldn't talk) was how good it was. Had such a chili high I don't remember specifics!
Also, the green sauce (it isn't really guacamole) served on taquitoes at the stand at the North end of Olvera Street in L.A. (oh, I'm drifting off subject==but don't forget the mustard at Phillippe's a 1/4 mile north of there).
Makes me almost miss Cali.
Oh=the Original Question: yes, I use hot sauce on fried food==fries, fish, chimis, etc.