I dunno, i have a necromancer wizard who's been using Create Bonfire and Control Flames to great effect as crowd control tools (he focuses on fire spells in addition to normal necromancy stuff for flavor reasons), spreading smokin' hot fiery death around in battle and being a very effective tool in many situations out of it (try setting someone's crotch on fire, and if your Dm doesn't give you advantage on the intimidate check, he's full of it), though admittedly the character is one I play in a persistent chat game that's mainly city-based. In fact, as soon as I saw those cantrips I had to have them. They're amazingly easy to use as game-changers if you're smart, especially if you use them in addition to a flask or two of oil. one square of fire may not seem like much, but when used intelligently it's absolutely deadly. I'm thinking about having him pick up elemental adept just so he can deal with the fire-resistant enemies he will surely begin to encounter pretty soon.