With 148 new restaurants opening up this year alone, the abundance of dining options in London is one of the best things about life in the capital, but the choice can occasionally feel overwhelming.

Step forward Harden's London Restaurants, the 24th edition of which has just been published. The guide is one of the UK's most detailed restaurant polls, collating scores from 65,000 reviews from over 6,000 people, naming, and in some cases shaming, the best and worst eateries in the city.

Some coming under fire included the OXO Tower, topping the "most disappointing cooking" list and branded by Harden's reporters as "lazy", "overcrowded" and "awful as ever". Ouch.

Not faring much better were offerings from celebrity chefs such as Heston Blumenthal's Dinner in Knightsbridge and Gordon Ramsay's eponymous Chelsea restaurant, both of which made appearances in "most disappointing cooking" and "most overpriced restaurant".

Peter Harden, the guide's co-founder, said some celebrity restaurants had expanded their brands too quickly, saying: "We are generally sceptical of celebrity chefs cashing in on their brands and most are showing signs of difficulty in keeping the quality high as they try to grow their restaurant empire."

MOST DISAPPOINTING COOKING

1. Oxo Tower (Restaurant), South Bank

2. Dinner, Knightsbridge

3. Colbert, Chelsea

4. The Ivy, Central

5. Gordon Ramsay, Chelsea

6. Le Gavroche, Mayfair

7. Balthazar, Covent Garden

8. Marcus, Knightsbridge

9. Alain Ducasse, Dorchester, Park Lane

10. Dabbous, Fitzrovia

London's 'most disappointing' restaurants named and shamed