When we first started cruising we thought we would want a table for two...boy are we happy we didn't get one. We've met some great people on all 5 of our cruises. We haven't had a dud yet.
We have seen couples sitting alone at tables for two and they always look a little sad. You can see them staring at the other tables that are laughing and having a great time, somehow you think they are wishing they were sharing in the fun.
I'll admit, we wouldn't want to eat EVERY meal with a group...but we certainly enjoy dinner with a table for 6 or 8..sharing our experiences of the day, etc. It's a fun time and makes dinner an event too!