Airasia X is not bad. The seats are standard (32 inches) and if you purchase hot seat with extra legroom, it is comfortable. Alternative you may pray that the plane is not fully booked that you can lift up the armrest and make your own "bed" from 2nd rows onwards.
Some hopefully useful tips for travelling to London
Tip 1: Make full use of 2 for 1 promotion
Offering 2 people pay only FOR 1 person fees entry to over 100 top London attractions, restaurants, theatres, exhibitions and more, when you travel by train to the London! Attractions included London Eye, Madam Tussaeud's, London Zoo, Tower of London and many more. For more information visit: http://www.daysoutguide.co.uk/attraction-types/2for1london.aspx The promotion is valid for anyone who travel to London by train (for example if you arrived at Stansted Airport, purchased a Stansted Express ticket will entitle you to this promotion) or purchase travel card/ticket from railway counter. The travel card/oyster card from underground station is NOT valid. This year the promotion runs until Sept. You can saved so much on the entrance fees.
Tip 2: Underground
The underground in London is clean, fast, easy to use and safe. The front desk is very helpful. Some stations from difference lines are only 2-3 mins walking distance away, do check with front desk or officer on duty for best route to travel. For example, to visit London Eye, get down at Westminster station (circle line) and walk across the bridge to London Eye is easier and more pleasant than get down at Waterloo station (Bakerloo line).
Tip 3: Theater
A must do for London visit, absolutely gorgeous. If you willing to spend more on this item, get a dress circle ticket which give you the best view.
Tip 4: Park.... hugh park
London has so many free but well maintain park. Hyde, Kensington and Reagent Park all offer so much greens and leisure. Queen's Mary Garden will be absolutely gorgeous during summer, full of roses and flower. Kensington Garden is NICE.
Tip 5: Greenwich
The place where the world is divided into East and West, Royal Observatory. Located on a hill at the center of hugh and beautiful Greenwich Park. Brilliant. You can stand one foot in the eat and another in the west. No underground to reach there, but can be reach via Thames river cruise.
Tip 6: Abbey Road
If you want to visit the famous Abbey Road studio and the pedestrian, do note the address is No 3, Abbey Road. So make sure you are looking at the correct place. The wall is full of signatory, you won't missed that.
Tip 7: Madam late saver
Go to most of attractions afternoon after 2 pm to avoid big crowd, especially Madam Tussaeud. The slot after 5 pm is the best, you get to take more photos and with little bit more of luck, you got to pose with few celebrities status as "with invitation only", free of charge. The slot at 5.00-5.30 pm is half price, need to book earlier from the official website. We went at around 4p.m. the guy just ask us to go in anyway. So try your luck, you will never know.
Tip 8: Souvenir
The price of souvenir is more expensive when you get closer to tourist attractions area. So, if you can purchase it at the market, said Portobello market. Do so.
Paris
Tip 1: Make reservation
Purchase tickets before you go, especially Eiffel Tower and the Louvre. The tickets can be purchased online or chain store like Virgin Megastore (the Louvre) if you are not willing to queue for buying ticket AND queue again to enter. If you have ticket, just go straight in with priority. The ticket for the Louvre after 6.00p.m. on Wed is on discount.
Tip 2: Notre-dame
If you want to listen to the sound of grand organ, go on Thurs around 6 p.m. There is a service at that time, and they do welcome visitors as long as you don't disturb the service.
Tip 3: Montmartre
Get absolutely gorgeous Paris view from Montmartre in front of Sacré-Cœur Basilica, free. Visit the stairs of Rue Foyatier, fabulous. Go late at night when most tourist left and local swam in. For more information on self-guide Montmartre walk, click here http://www.paris48.com/montmartre-walk.html
Tip 4: Sourvenir
The closer you get to the tourist attractions, the cheaper it will be. Get it from the guy who selling it mobile not the shop. The drink and food on contrary, are getting more expensive when you get closer to the tourist attractions.
Tip 5: Do you speak English?
If you see some women (look like Indian Muslim) and ask you this question, do you speak English? Just shake your head. Those are professional beggar in Paris. Not fun dealing with.
Tip 6: Parisians
They are not the friendliest but generally helpful. They are more willing to help if you appear speaking anything other than English.
Nice, roomy and cozy apartment close to Moulin Rouge for consideration. Might need to try send few mails before get any reply. They do not mean to be rude, but they are Parisian, so...
And finally if you want to visit Old Trafford, do not go during off season. Changes are the sponsors will be using it for their own tournament and you won't be able to visit player changing room, dugout and the tunnels. :-( which are the reason fans wanted to go anyway. So plan you trip well.
Bon voyage.