Bitcore:
Maximal Supply:                    21 million coins
Maximal Blocksize:                10 MB (20 MB SegWit)
Blocktime:                           2.5 minutes
Blockchain:                          own blockchain (NOT a fork!)
Blockchain Size:                   ca. 400 MB
Mining Algorithm:                  timetravel10 (GPU)
Difficulty Algorithm:               smooth Diff64_15: 15%, 3 hours
Distribution:                         airdrops, claiming via snapshot (for BTC holders), mining
Maximal transactions per day: ca. 48 million
SegWit:                              yes
Replay Protection:                not necessary

Bitcoin:
Maximal Supply:                   21 million coins
Maximal Blocksize:                1 MB (2 - 4 MB SegWit)
Blocktime:                           10 minutes
Blockchain:                          own blockchain (NOT a fork!)
Blockchain Size:                   ca. 145 GB
Mining Algorithm:                  sha256 (ASIC)
Difficulty Algorithm:               standard BTC: 400%, 2 weeks
Distribution:                        mining
Maximal transactions per day: ca. 1.2 million
SegWit:                              yes
Replay Protection:                not necessary

Bitcoin Cash:
Maximal Supply:                    21 million coins
Maximal Blocksize:                 8 MB
Blocktime:                           10 minutes
Blockchain:                          fork of Bitcoin
Blockchain Size:                   ca. 135 GB
Mining Algorithm:                  sha256 (ASIC)
Difficulty Algorithm:               standard BTC: 400%, 2 weeks + EDA
Distribution:                         mining, claiming
Maximal transactions per day: ca. 4.8 million
SegWit:                              no
Replay Protection:                yes