My main reason for prefer litecoin (or a faster coin) over bitcoin is simply the confirmation time. When I have to wait over an hour after a transaction is initiated in order to use that amount, it's simply impractical and completely unnecessary. litecoin takes much less time. (though something like worldcoin would be more ideal).
Why wait an hour then? You are accepting less security just starting accepting Bitcoin with 2 confirmations. Tada 66% faster.