Of those two, I'm with Cicero.
I don't want to be too morbid but you have no choice in being born and everybody is guaranteed to suffer in life, even if only in the inevitable death. So I'm with Buddhism on that: life is suffering. And although you can have highs, are they a worthwhile trade for the lows... do they neutralise them? I don't know but I don't think so... no amount of highs could make up for the worst pains because you still have to go through it at some point, and when you're actually enduring it, that can be hell on earth... and that hell is contingent on being born... if we weren't, it wouldn't be there.
I don't want to be too morbid but you have no choice in being born and everybody is guaranteed to suffer in life, even if only in the inevitable death. So I'm with Buddhism on that: life is suffering. And although you can have highs, are they a worthwhile trade for the lows... do they neutralise them? I don't know but I don't think so... no amount of highs could make up for the worst pains because you still have to go through it at some point, and when you're actually enduring it, that can be hell on earth... and that hell is contingent on being born... if we weren't, it wouldn't be there.