The two paths eventually meet, so I wouldn't deliberate too much. When I do that, deep down I get the sense that I'm making a deal with the enemy. Any loopholes I catch myself inserting into the contract I have made with myself end up becoming tripwires for future demise. Not necessarily saying that is what you're doing, but this is a mental game. A major part of the battle occurs between a thought to another thought to eventually initiating an action. Break the loop in as many manifestations as possible.
If I had to pick, I would say the hard one is better. Just that act alone of choosing to say no and go into the fight immediately will make you stronger whether you can feel it or not. Saying no to the impulse is always a good thing. Even if it's not fun, I have never regretted any refusal of it. The more times you complete that circuit in your decision-maker, the more it will become a part of you. To be honest, that thought of "OK, yeah this is really not fun" needs to be reinterpreted every time as a signal that you are winning. It's enemy propaganda.
If you say no to a temptation, you're saying yes to strength.
The post-binge rally might initially be easier to rack up a few days or more to whatever sticking point might be there, but I have found it to be kind of insidious. It just sneaks up on you, slowly slightly worse than the previous day, until the straw that breaks the camel's back (or in my case, the mangy donkey). To my mind, it reinforces the binge process, the "get it out of my system" backslide. If you make a mistake, say no to Mr. Chaser. Just get through today, distract yourself w/ a things to do list, break the pattern. Break the enemy. Today is possible. Tomorrow is possible. 50 days from now it is still possible. Eventually it will get more manageable.