i'm blowing my own whistle here, but i'd recommend Nya.is - my own file host.
here's why i'd recommend it over other hosts:
3GB upload limit
Continually improved
Has measures in place to stay off of blacklists. (See VirusTotal results 1, 2)
Privacy - unlike some other file hosts, I don't look at what is uploaded. This is to benefit both me and the end user, I benefit because I can't be held liable for content I don't know exists.
Hosted in Moldova - with a host that was chill with hosting The Pirate Bay.
Ran by me
I have a contingency plan in place for handling large amounts of data - a lot of hosts die out when their wallets can't keep up with server costs, my server costs will never get that high (due to optimisation and wise purchases).