We have seen the hacking attack of reportedly 60M USD from Bitfinex and the attack of the DAO for reportedly around double that amount.
But after both attacks we have seen two very different things happen.
In the case of the Bitfinex attack there isn't even the slightest suggestion that some sort of "hard fork" would be offered by the Bitcoin Core developers (so they are just going to have to wear their loss for their mistake) but in the case of Ethereum we have now ended up in a "fork war" with ETH vs. ETC (and ironically ETC is actually the "original" code with ETH now being a fork).
Opinions?
Bitcoin is looking better than ETH because of the fork war dragging down the value of ETH, while raising the value of ETC at the same time. It's kind of a game of numbers, ETC is doing better than Bitcoin %-wise, but Bitcoin doesn't have to drag down the value of a "twin"-crypto in order to generate value itself.
I've never been a fan of Ethereum, so you'll have to take this comment with a grain of salt, but considering that Bitcoin has gone through multiple hacks in the past and never had to fork to recover, it's probably doing much better than the ETX line of cryptos.