What are you asking for is a small fellowship which is a warden. If you are familiar with how the warden used to play then things are a bit different. You still are able to self heal, have some massive tanking abilities (through avoidance) and do some real decent DPS. The have chain gambits which has finishing moves (does more when done in order). I am not a huge fan of this but that is the way most classes are made now (other classes have cash out) but once you get used to this you can see how the number stack up. I have died several times after the release of HD but that is probably because I am still pushing the limit of what I can do. If you want a class that can run into an orc camp and pull 10 - 15 mobs and survive then this class is for you.
The guard can be a decent solo class. I know I have taken my guard on T3 6 man skirmishes and survived. It is a slow process. But when leveling up you will do fine. In fact most of the lower - mid levels all classes are very good at soloing. The champ is very good as well as it does some massive melee damage. My Champ is only mid level so I can't say how it is now that the revamp has taken place. The Captain is fine and very fun to level up. Though killing some of the elite bosses can take a long time.
For more of a challenge then go for a Minstrel. They have some real massive burst DPS and can also heal. I am enjoying soloing my way through Rohan at the moment (of course if you never fellowship then you avoiding a main role of this class).
Best way to decide is to see how you like to play. Level one up to 30 and see if you like the game play. If not try another class.
they are all dead.. they just don't know it yet....