I love monero simply because of the fact that it is one of the most popular coins available in their market and the transactions are untraceable along with the making of transactions which make it super private.it is one of the good coins for investment.
The another coin i love is verge as i see alot of potential in verge. The transactions are private and even the ip addreess of sender and receiver are private. You can expect good amount of growth from it within 2-3 years for sure.
I am (was) hopeful about XVG as well, but there is a lot of uncertainty surrounding the coin, saying that it might be a scam. Even if these allegations may not be true, since a lot in the crypto environment relies on the impression you make instead of the actual product, I'm afraid the price will not increase unless the FUD is addressed.