(you) couldn't have asked for (anything) more

this is the best thing of its type you can imagine.

My career has been terrific. I couldn't have asked for more.

Our daughter's babysitter turned out to be wonderful — we couldn't have asked for anything better.

• someone can't hold a candle to something else
• someone could do something with eyes closed
• someone could do something with eyes shut
• someone could do something with their eyes closed
• someone could do something with their eyes shut
• someone couldn't care less
• someone could with eyes closed
• someone could with eyes shut
• someone could with their eyes closed
• someone could with their eyes shut
• someone, eat your heart out!
• someone from hell
• someone gets religion
• someone has got game
• someone has more bark than bite
• someone is at disposal
• someone is at your disposal
• someone is in business
• someone of a certain age
• someone par excellence
• someone's answer
• someone's answer someone
• someone's answer something
• someone's ass is on the line
• someone's bag of tricks