Flower / cutesy names: Poppy, Daisy, Ivy, Petal, Iris, Violet, Lily, Rainbow, Boo, Honey, Millie, Pixie...
V names: Violet, Verity
K names: all of them, except Kate which is lovely. Would always, always choose, for example, Catherine over Katherine.
'Quirky' spellings: e.g. 'yn' endings and general butcherings of originally nice names - Ellyse for Alice, etc, etc.
Hypenated madness: Daisy-Mae, Ella-Rae
Double names which aren't even hyphenated: Sarah Jane, Sarah Louise, etc, etc. Lovely by themselves - no need to double up
Old lady not chic in the slightest: Ruby, Pearl, Ivy, Hilda, Beryl, Sybil, Maud, Mabel, Morag
Alicia, Aleesha, Elisha, and all permutations
Stripper names: Lola, Tallulah, Delilah
'Trendy' names: Darcy, Scarlett, Sienna and all others which will date them horrifically
Random others: Imogen, Charlotte, Ella (such a non name), Jenna, Florence, Deborah
This is just the tip of the iceberg.
For what it's worth, my own name has been mentioned once (more if you take other spellings) - but it seems to be ubiquitous now so hardly surprising some people don't like it, whereas it was rare as hen's teeth in my day. DD-to-be's name hasn't been mentioned at all, and it is a classic name - not at all unusual.