I'm very surprised by how popular chicken is here. My rankings:
1) Beef. Steak is so flavorful to the point where many chefs feel you barely need to season it (or barely need to cook it). Burgers are a terrific comfort food. Jerky is my favorite snack. Food is pretty subjective but I find beef to be absolutely delicious in most any form. I like chili, meatloaf, tacos, steak nachos, you name it.
2) Seafood. It helps that I'm in an area with a lot of great seafood but few things are yummier to me than a slab of pan-fried fish filet with some heart-stoppingly creamy lemon sauce on top. Grilled shrimp are crazy good (gotta devein them though), crawfish etoufee is wild, snow crab legs are awesome. I'm not a fan of oysters and their kin since eating something whole kinda squicks me out, and cephalopods aren't my thing, but otherwise seafood is crazy good to me.
3) Pork. It's close to seafood for me but not quite as varied. But I like this sweet meat a lot still. Pork chops and ham are solid, bacon really adds a lot of flavor to any dish, and ribs are among my favorite foods.
4) Chicken. I'm a fan of fried chicken and chicken flautas, but I've simply had too much disappointing chicken in my life for this to be anything but last of the four big meats. It's infamously low on flavor, and if I had a dollar for every underseasoned chicken meal I've eaten in my life, I'd have enough money to afford...like two or three steaks.
Other meats feel like more of a novelty to me rather than a staple, but perhaps I haven't had enough of them. I've enjoyed lamb okay when I've had it in gyros and stuff, venison is fine, but I don't much care for turkey (too dry) or more gimmicky stuff like alligator.