Raglan underarm holes--what to do?

I’m making a top down raglan sweater and I’m left with these ugly holes under the underarms. I’ve been told just to whip stitch them together but I don’t think it makes for the best seam. Is there another way to seam these holes together without them looking unsightly? I prefer a more polished look, any special techniques??

Thanks!

http://www.studioknits.com/booktoc.htm I don’t have time to scroll through the book, but you may find something here to help.