Budget Travel - help

Could anybody please advise as to which are the best seats in economy on
A330/200/300 Etihad airlines. Never been on long haul flight before and need a little help.

Thanks

Welcome to Flyertalk. You might want to check out seatguru.com:

http://www.seatguru.com/airlines/Etihad_Airways/information.php

...and if you want a second opinion, try seatexpert.com

http://seatexpert.com/seatmap/398/Etihad_Airways_Airbus_A330-200/