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I used to think monero had more long-term risk than bitcoin, network-wise as profit-wise I'm always "ready" to lose everything, cry and move on but so far I think both have the same risks yeah the bitcoin network is more secure but extremely centralized in a couple of pools located in a far-east dictatorship, there is also the problem with the bitcoin eliptic curve that is not used anywhere, so I conclude if I want to hedge my monero other than with bitcoin it would be something like litecoin or moneroclassic aka AEON and other cryptonotes.
I have actually considered Bitcoin a much higher long term risk than Monero for over two years, largely because of the blocksize issue. The 1 MB blocksize in Bitcoin effectively prevents any growth in Bitcoin. When one considers that much of the valuation in Bitcoin is driven by market perception of future value, in the form of venture capitalists for Bitcoin businesses, and investors and speculators in Bitcoin itself, the downside risk in Bitcoin becomes apparent.
As for hedging with other crypto currencies I see very few options. Aeon is a possibility since it has a tail emission in addition to the Cryptonote adaptive blocksize limit. A Cryptonote coin without a tail emission is basically a ticking time bomb from a security point of view. One interesting possibility may be Dogecoin because it has a tail emission in a BItcoin like "in the clear" coin; however at this point in time Dogecoin does not have an adaptive blocksize limit. I do still hold very small amounts of Bitcoin and Namecoin. The latter is basically a play on a sharp increase in the price of Bitcoin which could happen for a short period of time.
As for non crypto currency hedges, fiat (cash or very short term deposits) is my personal choice because it tends to correlate negatively with crypto as a whole. It also provides very good liquidity over the short term. Some may suggest precious metals. I find stocks to be horribly overvalued and the same can be said for real estate in many markets.