I love Atticus, Felix, Robin and Zachary from your list. But I can't see what's guilty pleasure about any of them bar Atticus. Felix, Robin and Zachary were on my shortlist for at least 2 of my 3 DDs, had they been boys. I think they're quite normal?
My guilty pleasure names (some of them I probably would have used without too many qualms, tbh):
Rafferty, Montgomery, Jefferson, Wilkie, Emerson, Phoenix, River, Inigo
Araminta, Avery, Addison, Atlanta, Aubrey, Cressida, Christabel, Crystal, Dakota, Emery, Everly, Elisaveta, Evadne, Elfie, Fenella, Giselle, Gypsy, Harper, Isis, Jessamy, Jerica, Jocasta, Juniper, Journey, Kennedy, Kiki, Lyric, Madison, Mackenzie, Mirabella, Misty, Nikita, Octavia, Persephone, Piper, Raine, Rainbow, Star, Story, Xanthippe, Zerryn