I'm a crisp tradionalist and I like Ready Salted and Salt and Vinegar. They are good all rounders, good on their own or with a sandwich. Sea salt and cracked black pepper Kettle chips would be my choice if I'd like to get a mortage to pay for my potato snacks. Top crisp tip. Check out the chilli and lemon potato snacks in the 'ethnic isle' of Tesco.
Helicopter flavour are my favourite, especially if they haven't got "plain" (we call ready salted plain crisps here) i'll get my coat.