What is your target purchase price? I don't believe you mentioned that. The analysis changes if you are talking about putting $100K down on a $200K house, vs. $100K on a $500K house (20%). I like the advantage of the low interest rates, so personally would only put down the minimum % required to avoid PMI, typically 20%.
I am assuming you are currently renting? If that is the case, what is your monthly rent compared to what you expect your mortgage payment to be? In some markets, it makes a lot of sense. In others, its better to rent. Doing a 30 year could make the analysis more favorable for buying.
You can also buy a house and do things to make money through home ownership, such as house hacking or live-in flips. Not sure if either of these appeal to you.