Porteus

I'm pretty satisfied with Swisstransfer, however I've recently discovered
OSHI

It has a very convenient command line interface:
https://oshi.at/cmd

Allows "onion" anonymizing links...

Other features, as listed on their Github page:

• Respects users privacy - no logs are collected
• Full command-line interaction and uploads via PUT method (curl -T)
• TCP uploads via netcat and telnet
• Manage interface for each upload
• Optional instant destruction after download
• User defined expiry time
• Simple administration interface
• Easy template along with a very stylish no-JavaScript version included
• Duplicate files detection using SHA* sums

Which one is your favorite?

Very cool.