It can only be IOTA as I'm invested in BITCOIN, Ethereum and IOTA love them all but IOTA will surpass them due to it's TANGLE (They call it Tangle instead of blockchain)
BITCOIN: blockchain v1.0
Ethereum: blockchain v2.0
IOTA: blockchain v3.0 known as TANGLE
Check out the TANGLE live with LIVE http://tangle.glumb.de/
transactions and NO fees unlike BTC & ETH blockchains
