Lingerie reseach: guys, what lingerie do you buy for her?

This is for a lingerie report.guys, suppose you want to give her a xmas lingerie gift.1) what colour would you choose? do you always think in red first? or would you prefer black or any other colour?2) would you get a classic model or a different-original one?3) cute or sexy?4) what fabric? i guess you want it to look expensive. maybe satin? lace?5) and if you choose a 3piece gift, what 3pieces would you like? thong, knickers, bra, corset, nightdress.
Answer
Crotch-less