This may just be me, but my favorite thing about the Lioness Quartet is that it didn't follow the "you'll only ever be with one person ever" plot, and had multiple members of the main cast having more than one romance before finding someone they wanted to settle down with. Even with all the other Sue elements to it, that made me feel so much better as a teenager, because my first 'love' had ended badly, and this was the first series I'd read that didn't have "one true soulmate" as a big part of it.