EOS is a very ambitious project, which if successful will bring a lot of adoption into the cryptospace.
The main focus of EOS is scalability (imagine millions of transactions per second) and decentralization (reason given for a year-long ICO that should give opportunity to any interested individual to participate and prevent whale domination)
EOS also has experienced and tested developers like Daniel Larimer, developer of Steem and bitshares blockchain which are also highly scalable.
If EOS becomes successful and Ethereum refuses to scale further then it might fulfil the prophesy of being an Ethereum killer, Yea the
Ethereum
On
Steroid.
Though, I also feel EOS is overvalued in terms of market capitalization (because it is still a developing product) but I don't see NEO overtaking it in the nearest future (except something very unusual is implemented on NEO or EOS drastically fails)
So, I go for EOS
In terms of market cap, I don't see NEO close to EOS.
EOS has a great ambition, and backers are increasing day by day; imagine blockchain industry movers, such as Bitfinex, Huobi, AntPool, Wancloud, OK Blockchain Capital
et cetera applying to be EOS block producer.
Just wait till June 2