BCC has the same blocks as bitcoin (~every 10 minute)
LTC has 1/4 time (~every 2.5 minute)
BCC has huge blocks that if becomes full or spammed will eventually lead to centralization of nodes. and we know the spammers are around us.
LTC has not been spam attacked severely because there was no incentive.
LTC has the SegWit and will soon have lightning network and that would be adding it to a big group of cryptocurrencies with LN an all will be connected and with a lot of benefits.
BCC doesn't have this.
LTC fees are low.
BCC fees have no reason to stay low specially since mining bitcoin is hard and in order for minder to make profit they either have to increase the fees or increase the price and only one of these is possible.