SpectreCoin is way better Monero, I don't even know how people can compare both.
Kovri? Please, I know no anonymous network is perfect, but Tor has the biggest community and many years of development and improvement. Kovri is a good project, but it's new and not yet implemented. SpectreCoin, on the other hand, is the only coin with bridge obfuscation by default. The government can't even know that you are using Tor.
At the end, both projects are aiming for the same thing, but by using different techniques. The thing is that SpectreCoin has a ton of features that already works, just check their website.
Other than that, monero has e 5 billion market cap, the room for growth is way, way, way smaller than the 64 million from the SpectreCoin.
Conclusion: SpectreCoin is better than Monero and has a small marketcap, it is easily a 10~50x coin.