I've won many bets on esports going back many years on a dozen different platforms and currency types, whats your point

Only thing to consider is the whole sector of esports developing and expanding. Yes it is and will this project manage to do something new and significant to advance consumer interests and involvement and if so its worth the wait
Isn't the aim of HERO to remove the middleman and wanting to keep the money/tokens with the users. Wagerr on the other hand takes a fee off the winnings bets. Unikorn I think is like a bookmaker and you bet against them. I like the Hero way of keeping the money/tokens with the users and not giving it to the house.
The most straightforward way to be the house is by operating an Oracle Masternode, a network component (or consensus agent) that earns half of Wagerrs service fees for performing bookkeeping services. Oracle investors collect fees and systematically win, just like traditional bookkeepers.