I have both. It largely depends on which coins you want to store. The Ledger stores a much larger variety.
As an actual user experience, I prefer the Trezor. It's feels friendlier and for me at least it's never crapped out. The Ledger is much more temperamental when it tries to link to its Chrome app.
None of that's much use to you if the Trezor can't store what you want.
I also own both and I do not have the same problems with the Ledger. I have to say, the Ledger is more affordable than the Trezor, so your budget might make the decision in the end. ^lol^
Hardware wallets are more secure and flexible than other wallets but they are intelligent toasters in the end. Any device can break, no matter how "smart" it is. <If you can afford it, buy two or more for backups> ^smile^