An interesting viewpoint i heard brought up once is that Sovereign (the first reaper) may not be a good baseline for the reapers as a whole.
Consider: The Reapers, massive as they are, are still thinking beings, with ideas, goals, plans, etc. And part of that plan is to leave behind one of their men - just one - to activate a signal to bring them all in. Like a scout.
Except this 'scout' (Sovereign calls himself a vanguard, which advances ahead of the main force) has to be able to fix anything that may go wrong. And if you're going to send one man into the middle of enemy territory, you're not going to send your average, everyday soldier: you're going to send your absolute best. The kind where 'you and what army' is no longer a joke. The friggen BATMAN/SUPERMAN BASTARD CHILD of the reapers.
tl;dr (what does that even mean?) Sovereign was probably the strongest reaper in the universe, and the other reapers, while tough, can still be taken down without quite as much loss.
Consider: The Reapers, massive as they are, are still thinking beings, with ideas, goals, plans, etc. And part of that plan is to leave behind one of their men - just one - to activate a signal to bring them all in. Like a scout.
Except this 'scout' (Sovereign calls himself a vanguard, which advances ahead of the main force) has to be able to fix anything that may go wrong. And if you're going to send one man into the middle of enemy territory, you're not going to send your average, everyday soldier: you're going to send your absolute best. The kind where 'you and what army' is no longer a joke. The friggen BATMAN/SUPERMAN BASTARD CHILD of the reapers.
tl;dr (what does that even mean?) Sovereign was probably the strongest reaper in the universe, and the other reapers, while tough, can still be taken down without quite as much loss.