Which 2020 Democratic presidential candidate should I support?

Help! I can't decide which Democratic presidential candidate to support, and I'd like to take a position before the Iowa caucuses on February 3.

I've narrowed it down to 2 candidates: Mayor Pete Buttigieg and Senator Amy Klobuchar.

Which of those 2 should I support and why? Feel free to make your own arguments or link to anything relevant, as long as it's specifically about Amy Klobuchar and/or Pete Buttigieg.

I may do a future post about how I decided who to support. But to be realistic, it's unlikely that both of those candidates will still be actively running by the time I have to vote in New York, which won't happen until after 35 other states. If only one of them is still running by that time (April 28), I plan to vote for that person.

UPDATE: Lots of good feedback in the comments on my Facebook post about this.

UPDATE: I decided.