There is a lot more to litecoin supply than "4x as many as bitcoin".
First, consider the distribution of bitcoin. Millions are lost, satoshi holds a million, winklevoss holds a million, dpr /feds hold 629k, and large businesses have holdings with no intent to sell. All in all, there are probably about 2 million btc available for trading by speculators. Now consider litecoin. All of the current 20 million lite coins are in play and held by speculators. This makes the supply 10 times as heavy as btc. Also, most of these speculators are waiting to dump during a mtgox IPO.
Second, the mining suuply is actually 8 times greater than that of bitcoin. There are 4 times as many blocks and twice the present block reward. So there is also a heavy constant stream of supply on top of the huge existing supply.
This is why litecoin can trade 3,000,000 ltc in a day and close the day at only a few percent difference. Imagine if btc traded 3,000,000btc in a day, or 750,000btc even. It would shoot up into the moon.
This is basically the noobiest thing ever.
The distribution of Bitcoin... its a free market. Lytecoin has absolutely no restraints inside of it to prevent hoarding just as much as Bitcoin, because, golly gee, its also a free market. The fact that you seem to imply that simply that having simply more coins restricts hoarding is absurd. All of your '8 times as much LTC being created' is literally equivalent to just splitting apart BTC. There are 1000 times as much mBTC being created as BTC, i.e, 125 times as much as LTC. Does that make mBTC 125 times better than LTC?
I can trade 3,000,000 mBTC in a day and it not shoot up to the moon. You're literally shifting the decimal place over and calling it some great improvement. Honestly this argument makes negative sense.
Lets actually look at what Litecoin is.
1) They divided the time between blocks by 4, multiplying the total amount of currency by 4. Wow, yay for changing constants. As I've already said, multiplying the total money supply doesn't do crap when a currency is as divisible as BTC. Dividing the amount of time between blocks just requires people to check for more confirmations to achieve the same amount of security, thereby achieving absolutely nothing.
2) They use an inferior and less-tested encryption scheme. It attempted to discourage GPU mining but it epicly failed. All it does is make ASICs have a larger barrier to entry, which means that its much more vulnerable to a 51% attack.
3) Its an altcoin, which, if successful, will destroy cryptocoins as a concept since they have the potential to effectively cause any amount of inflation possible if they are accepted as anything other than pump-and-dump schemes.
Every single functional change to BTC actually hurts LTC, and the non-functional effect of changing constants... doesn't matter. Remind me why anybody would ever use this thing as anything but a bubble-making-mechanism?
EDIT: As for "large businesses holding with no intent to sell"... isn't that the whole goddamn point of a currency? If LTC were to be adopted by mainstream audiences, replacing the dollar, then nobody would want to "sell" LTC either, meaning that we should randomly delete all of LTC either and replace it with Fuckcoin?