Given the size and type of ships they have then Thomsons could be seen as direct opposition offering the same type and stle of cruise. But others will give your other options no doubt.
Try ocean village about the same size ship but informal, similar destinations.
Ocean village is 70,000 tons so is considerably bigger than island.
Ocean Village operate a very similar style of cruising experience aimed at the UK market at similar prices with both providing buffet service food (or waiter service at an additional cost) and a casual dress code.
...am I allowed to say a Dover-Calais car ferry....?
That is a JOKE by the way!
Hi ya hope your telling truth a bout your joke nothing wrong with island cruises they get good reports as well .some top names like p/o and r.c.i. etc get bad reports about there ships so they not that great as well .