Glad to see Vonda Shepard get a mention here - she seems largely forgotten since Ally McBeal ended.
She was so close to my list for sheer Ally nostalgia. Though I did love most of By 7:30 as well.
If I'd gone more by 'artists who I've played most throughout my life' she could have made my list, even if just because back in the late '90s I only owned about 40 cds, 5 of them being by Vonda (with some help of the cast here and there). But overall she's not really on my mind (or playlists) anymore, though I do enjoy her whenever itunes brings her up.
I got a huge (nostalgic) weakness for I Can't Help Myself and Fell In Love With An Alien due to them being everywhere at the time. So random, cause I don't think the band was particularly popular before or since those 2 singles.
Alcazar can be pretty hit or miss for me. They have some absolutely great tracks, but a lot of their material is just a little too cheesy/happy for me.
I say this as a fan of BWO and Steps, but those usually have something bittersweet to their songs which a lot of Alcazar's material lacked for me.