Honestly, probably not from an interview/resume perspective, because at the point of Skywest and higher etc., they want PIC/turbine/multi/TT (they may ask you why you decided to not get them)
but the CFI's will give you a level of understanding and comfort with flying that is hard to get through simply flying around.
Like you said, you could go to Scenic and build time and get them while you're there and do some instruction on the side.
That's actually a good idea, shows motivation and social interaction. Just make sure Scenic will consider you with low time/no CFI
I started at Skywest from being an independent CFI and got on with relatively low time through ramping for them.
But I needed the CFI more for the time than the resume, many guys I flew with got their time from Scenic.