I don't think there is an answer to your question, honestly. Conventional wisdom is, if planning to apply to ACGME programs, to take Step 1. But no one knows how the merger changed that. I personally don't like the idea of students having to take two boards, just because its expensive and I believe that you can extrapolate a COMLEX score to a USMLE score fairly easily. The ideal system to me would be one unified board system, with maybe a separate osteopathic board (maybe like a step 2 - ost). So DO students would take USMLE 1, 2, 2CS, and 2OST, while allopathic students would take 1, 2, and 2cs. I mean, I don't think that's going to happen anytime soon, but I think that would be the most ideal solution for students.
As for skipping STEP 1, I'm not sure what it gains you. You can't skip COMLEX1. And if you do poorly on COMLEX 1, you'll likely do poorly on USMLE 1, and vice versa. I don't know that skipping USMLE 1 hides poor performance somehow, since you can't skip COMLEX1.
My advice, if you've already paid for it and practiced for it... take it. Best case scenario is, you do better than you thought. Worst case scenario, you do exactly how you thought. But if you skip it and do poorly on COMLEX1, people are going to assume you would've done poorly on USMLE1. So you have nowhere to go but up. And like most things in life, once you face what you are most afraid of, usually the consequences aren't as bad as you thought.