Every day we pull some stats from a survey and say have a chat about the findings. Today: Best and worst online shops.

One in four online shoppers has experienced a problem with a delivery in the past year.

Issues include parcels being late (17 per cent), not delivered (three per cent) or damaged (two per cent).

More than a third (36 per cent) of people cite not being able to choose a suitable delivery time as an irritant when shopping online.

Other gripes include a lack of information about the time of delivery (26 per cent), delays receiving an item (15 per cent) and being sent goods that are damaged (11 per cent).

Here are the best and worst online shops according to a survey of Which? members (based on customers' satisfaction and the likelihood of them recommending the online stores to others):

Top 10:

1. WexPhotographic.com 91%

2. JohnLewis.com 90%

3. LizEarle.com 89%

=RicherSounds.com 89%

5. AO.com 87%

=Lakeland.co.uk 87%

=Toolstation.com 87%

8. ChainReactionCycles.com 86%

=Coopelectricalshop.co.uk 86%

10. AbeBooks.co.uk 85%

=Screwfix.com 85%

=Wiggle.co.uk 85%

Bottom 10:

90. Shop.BT.com (BT Shop) 58%

= Halfords.com 58%

= Isme.com 58%

93. ToysRUs.co.uk 57%

94. HMV.com 55%

95. PCWorld.co.uk 54%

= TomTom.com 54%

97. Homebase.co.uk 51%

98. WHSmith.co.uk 49%

99. DIY.com (B&Q) 47%

Source: Research by Which?

What do you think? Which online shops have you had good or bad experiences with? What would you like to see retailers do to improve online shopping? Post a comment below, or on Twitter using #nsstatchat