Four Seasons Hotel London at Park Lane vs The Emory

What you're paying for at Park Lane isn't drama, it's competence. Andrei's team remembered a diaper pail request without being asked twice; Amanda in events kept a full family baptism running smoothly outside her working hours because she wanted to, not because the job required it. Pavyllon and Bar Antoine are the genuine culinary highlight here, well ahead of the rest of the hotel, and the quiet, blackout-curtained rooms on a residential Mayfair side street between Hyde Park and Green Park make this one of the better jet-lag cures in the city, kids in tow or not.

The catch is that the money doesn't stretch as far as it should once you're past the room rate. Breakfast has become a real sore point: billed à la carte against an allowance rather than complimentary, and more than one guest has had to chase down overcharges on top of a service charge already added to the bill. The renovated rooms have odd quirks too, like doorless closets and a single light switch shared between bathroom and bedroom, and there's no real pool, just a spa vitality pool, which stings more the closer you look at what a night here actually costs.

Worth booking if what you actually want is effortless, well-drilled comfort and a location that's hard to beat for walking the parks and Mayfair shopping. If it's history in the walls you're after, look at Claridge's or the Dorchester instead; this one wins on everything that happens after check-in.

The Emory is Maybourne's one real departure from the Claridge's/Connaught script: Richard Rogers' glass box across from Hyde Park, 61 keys, all-suite, barely a lobby, sharing a spa and rooftop with The Berkeley next door. Rooms opened around £1,600 a night and the entry Courtyard Studios still sit near that, which buys floor-to-ceiling glass, a stocked-free minibar, a Cédric Grolet pastry on arrival, and Surrenne downstairs. The Tracy Anderson studio and the snow shower come up before anything else, and one guest who stayed five months called it the best spa experience of a very long trip.

This isn't a hotel that performs the same on night one as it does on night five. That same long-stay guest tracked their own housekeeping scores and found mornings ran measurably better than afternoons, and said outright that a one or two-night stay is too small a sample to judge the place fairly. Shorter stays back that up: a slow check-in, no manager on hand when something goes wrong, a "suite" facing a neighbouring building with the curtains stuck shut for lack of any view. The website oversells too: the welcome champagne, the unpacking service, the non-alcoholic beer add-on don't always show up as promised, which reads less like malice than a property still smoothing its edges two years in. A few guests have also flagged there's no concierge on-site for basics like booking a car, so you're sent next door to The Berkeley.

Book it for the design, the spa, and the quiet if you can give it three nights or more and shrug off an off moment; it isn't built for a single-night stopover. Give it three nights and the butlers, the glass, and Surrenne make the case themselves.