I would say both are equally annoying to me. It annoys me that Benning has made so many blunders, but I also believe in telling it like it is - he’s done some good things, but there’s a tendency to reflexively dislike anything he says or does (or might do).
Not saying everyone here is guilty of that, but there are those who are.
I would argue that it would be quite difficult for you to find much evidence of this actually happening. When people dislike a transaction, they almost always outline exactly why they dislike it and give clear logic and reasons for disliking it. When you dismiss those reasons and accuse them of "reflexively dislik[ing] anything he does," you are engaging in an ad hominem fallacy. You are attacking the person's motives instead of his argument. This behaviour (the tendency to focus on motive over argument) is the single most frustrating thing about trying to engage on this forum.
The problem with those who champion everything that Benning does is that this behaviour tends to pretzel them into making extremely poor arguments, and it is those arguments that are then torn apart, as they should be. If someone who is very against Benning (such as myself) is similarly making really bad arguments in an attempt to discredit Benning, then those arguments too deserve to be shredded. By focusing instead on my motive instead of my argument you are not discrediting anything I say and are just lowering the quality of discourse without addressing my argument.
I cannot communicate the level of frustration involved in putting a lot of careful thought into an opinion, taking the time to write it all out here with as much reason as you can and then having people dismiss it "you just hate it cause you hate everything benning does!" and knowing that this non-response is perfectly within the forum rules even though it does nothing to advance the discussion.
Having said that, of course we are all biased because we are all human, and it's impossible to ever come to any opinion about something Benning does without it being coloured by your previous opinions of him. That is true of 100% of the people here. All we can do is try to be self-aware and put forth the best arguments we can, hoping that others will check us if we argue poorly.