Peercoin is the only coin that can not only go to 1:1 but far far exceed it, why?
Because it is designed to.
No other coin is even aimed at the backbone, high value market. They are all TPS/RETAIL orientated.
High value transactions and the bulk of real wealth are not in retail/high TPS. They are in currency swaps, exim loans, large projects, forex settlement, balancing the nightly, buying houses / real property etc.
Only Peercoin is set up for this, and the other coins and 99+% of even crypto people don't get it.
However those with large amounts of FIAT will.
In here for example, For many BTC ers' the catch cry is BTC on AMAZON / EBAY which is similar to LTC on GOX. Or when can I buy shing bauble at store x.
The money is not on AMAZON/EBAY/WALMART/APPLE. They are small time business with little financial importance. Eg the largest companies are some 20x Apple and is private and you have likely never heard of it. That's right around 10T.
http://en.wikipedia.org/wiki/Saudi_Aramcothen there are other state owned enterprises that are similar or greater in magnitude.
microsoft has money because it takes 50$ of everyone every so often for an upgrade.
Gov's take multiples of that every day.
BTC will go to 100K and Peercoin can go further.