There's also the Terrarian too, but you know....
I consider that a bit off-topic to be honest. If you're going to compare a tier of weapons, simply stating that a higher tier of weapon outclasses them is like... well, obviously. I mean that's like comparing an Ice Blade vs Blood Butcherer and then going "well, pfft, just make a Night's Edge, it's way better than both!" ... well obviously, because it's a later tier weapon.
Though I would still have to debate Meowmere vs Solar Eruption. I find the cats' movement and the unpredictability of such vs the ridiculous DoT the Eruption has on it .... I find myself using the Eruption long after I've killed Moon Lord because of the DoT, its ability to infinitely pierce walls (at least Pre-1.4 I dunno if they changed this). Only thing I might consider would be the Terrarian.
And of course some of the 1.4 weapons might be serious contenders as well, like I can't wait to get my hands on a Zenith. That looks like one sexy as frick weapon.