Is the Quarian Ark under attack by the Reapers?

In your opinion. Quite a few here seem to be in favor of the idea of the quarian ark being under attack by a Reaper. It's certainly far more interesting than most of the other ideas suggested, and even MEA hints at the prospect. An isolated Reaper or two chasing after the quarian ark in no way invalidates or brings the ME3 ending into question. You are letting your own personal bias towards ME3 get in the way of telling a good story.

Naturally. You did ask for opinions.

Here is the problem I have with this idea. 

The entire Reaper method has been to kill off all smart biological life, erase any and all evidence of said life and then, 'hibernate' in dark space until the next group of biological life evolve enough.  This as worked for them countless times but it requires the 'cleansing' of all knowledge of them or else when they return for the next harvest they would have a very PO'ed race of beings who have had lots of time to develop new tec and massive amounts of it.

Now we come to the Andromeda Initiative.  For me it matters not if they caught the Quarian Ark leaving or not.  They certainly would have found records of it.  They would have NO choice but to follow and destroy the entire Andromeda Initiative or they would certainly face their own destruction the next time they returned to start another cycle.

This is one of the HUGE plot holes that Bioware is just 'waving their hands' about and yelling, "Pay no attention to the man behind the curtain."

I am sorry but you must not have followed the original trilogy very closely.  One of the things the Reapers do before going back to Dark Space is to erase as much evidences of themselves, and the previous races as much as possible so the next races won't have a clue what hit them when they show back up.

In the case of the ME1 the very reason our current cycle had any chance was they missed what the Prothians left behind and this allowed the remaining Prothians to emerge from stasis after the Reapers left and to sabotage the Citadel.  I won't go into any more details but you really need to review ME canon.

I don't think it could be the Reapers. I think even a single Reaper would able to relatively quickly destroy an ARK. I also hope it's not a Reaper because I don't care for one showing up and retreading old ground in that manner.

You constantly chop and change what you allege to have said.

"The entire Reaper method has been to kill off all smart biological life, erase any and all evidence of said life and then, 'hibernate' in dark space until the next group of biological life evolve enough."
this is one of your statements which is patently false,you make statements like this all the time and when someone challenges you,you try to strawman them.

Your current quotation contradicts your previous ones,be consistent please.

Could be a larger ark.

They should've just had them as a second wave of arks, each with one race on board.

I've already done so, but maybe you missed that post. Involving the Reapers in this narrative in any way further than they've already done so would be a terrible choice, and bad for the IP. This is a fresh start. Involving enemies from a resolved, retired trilogy would be senseless retreading of old ground.

If they knew that there were other arks as well, they'd probably use the quarian ark as bait to lure in people from the other arks. That way they can discover the location of the arks, nexus, colonies, etc.

Not that I think it'll be Reapers, just that they would likely use it as bait rather than just pewpewing it out of existence.

That human character tells you why she has a quarian name, her parents were ambassadors/diplomats sent by the Systems Alliance to the Migrant Fleet. She took on the name as she grew up among them.

I'm pretty sure they would care for escapees, they appear to operate under the goal of wiping out all of that cycle or ascending them into Reaper form, in order to allow another cycle to start. Allowing anyone to escape stops them from achieving their goal.

Again, I -really- doubt that Reapers are involved. I'm just saying that if they were, they wouldn't just destroy the Quarian Ark. They are far more manipulative and subtle than that.

I was under the impression that the citadel plan had always worked up until Shepard's cycle?