I2p is mostly a seperate network where everyone acts as a node. Its fast enough to torrent. The clearweb is accessible but it was added on as an after-thought. Personal sites are easy to set up. You can search for things in I2P. Nothing is really indexed in Tor afaik.

Tor is slow and is designed to access the clearweb with the darkweb as an after-thought. According to Mental Outlaw. Again, I have no experience, just going by what I’ve heard.