Litecoin has (generally speaking) much faster block confirmation times than Bitcoin Cash, indeed - but I don't think the transaction fees are cheaper.
I think that when promoting alt-coins it makes sense to focus on the differences and advantages it has over Bitcoin. Litecoin and Bitcoin Cash are basically Bitcoin with some minor tweaks. If one is to go for an altcoin, then it would be better to choose one that really can do things that Bitcoin cannot do. Ethereum is one such project (and with 15s block intervals, it's much faster than Litecoin).
I think Litecoin has a better future because of community and the constant update on development behind it. Bcash doesn't have a solid community or frequent update. As for altcoin, Ethereum does have interesting points but it too is going through complex changes with hard forks. I don't quite understand it right now while Litecoin is simple, cheap, and fast for everyone to use. That's why I support Litecoin and its future.Litecoin has similar fee to Bcash with much faster transaction so it has an edge on it. https://bitinfocharts.com/comparison/transactionfees-bch-ltc.html