Great game!
I could find uses for any of the three options. I'd probably choose the level-1 spells, though: that would have the greatest positive impact on my day-to-day life in a mostly mundane world.
Cantrips:
* Mending -- fix anything, seamlessly, from minor home repairs to broken red-figure vases in the British museum.
* Guidance -- be ~15% better at everything, always.
* Spare the Dying -- I understand the altruism behind choosing this, but the truth is I've not trained to be an EMT, a first responder, or an Emergency Room physician, and it's not the life I'd choose to lead. I'd probably choose Thaumaturgy instead.
Level 1:
* Comprehend Languages -- this would make me immeasurably better at my present job, in addition to the ability to understand anyone; read anything. With this question in mind, reading the spell description brings new things to light. the "literal" meaning is understood; does that mean that you aren't able to perceive non-literal meaning? What happens when I read poetry in another language?
* Unseen Servant -- an hour's housework done/day, with no guilt about asking someone else to do what I don't want to. This seems a no-brainer, to me.
* Speak with animals (first alternate) -- the more I think about this, the more I realize I'd learn about the world if I could speak to animals. We'd solve the dolphins question; and gain immeasurably in terms of our understanding of intelligence and nature. Plus, it would be cool. The only reason it's not higher is that I live in the city, and I expect I'd be saddened by the true thoughts of the animals around me.
Level 2:
* Lesser Restoration -- okay, curing cancer or blindness or something else 1/day is pretty incredible, and it's hard to deny one should choose that, even if I'm not working in an Emerg ward (the demands will be high, though, and I don't want to be making the call on who gets the benefit. So now I'm using my unseen servant to do triage for me). Next to that, my initial instinct to get Alter self for the aquatic adaptation seems positively selfish (or maybe shellfish).