The Most Advanced Species in the ME Series

The Kett seem technologically inferior to the Milky Way species, so they're definitively out of this race. The Protheans were close to unlocking the secrets of the Mass Relays, a piece of techonology the Reapers basically invented, so the Reapers are squarely in the lead in that match up.

The question is the Jardaan however. How do they stack up to the Reapers? They're both incredibly advanced no doubt, but it's worth noting that their intentions are vastly different. The Reapers view themselves as an apex of technology and philosophy, and seem fairly happy with where they are. They've stagnated, although that doesn't really diminish their technological level.

I imagine the Reapers and the Jardaan have fields in which they surpass each other. The Reapers probably aren't that great at terraforming like the Jardaan, but seeing how the Jardaan had to retreat from their terraforming network I imagine they aren't quite as well decked out for military confrontations even with their Architects flying around.

Going with the Reapers on this one, as the Remnant are still a pretty big unknown.

Is this a joke thread?
I can argue that the most advanced species so far isn't even in the poll. 

You left the giant squid dudes off the list that created the reapers. fix your poll!

The reapers were not created to create life, they were created to assimilate life to preserve a record and stop organic life from advancing far enough to destroy itself with synthetics. The reapers were merely tools the giant squid dudes created.

Amigo, you're talking to someone who has 75 playthroughs, fully completed of ME2. I know what the Reapers purpose is lol. I was comparing feats.

Damn...! He called you "amigo". Now shizzle's about to go down.

Probably either the guy who made the scourge to fight against the Jaardan or the Reapers.

The only thing the Kett have an edge in is genetics. Their other tech isn't even on par. The MW races would wipe the floor with them.

The Kett are partially technology superior to anything we've seen when it comes to genetics and those areas.

Where they fall behind the Milkey way races is in weapons and vehicles.

The way I see it, the Kett haven't needed to do major weapons and space shuttle R&D because they just convert species to them and move on.

However humans are squishy and weak compared to practically every aliens race, so we have made up for it through extensive R&D in technology and weapons to give us the capability to match the strength and durability other races have naturally.