I have Rise of the Dragon Lords. And I've built an effective deck around it with my big three of doom, aka Felgrand Dragon, Armed Dragon lv7 and Blue Eyes White Dragon.
But anyway, Dragon Decks. With the Synchro Monsters, you now have five (well, four) big dragons up there. The Five Dragons.
Stardust Dragon is probably the best for effects, it can sacrifice itself to negate a Spell, Trap or Monster effect and destroy the card using it. Then you can Special Summon it back from the Graveyard. The two big problems though, are Stardust being removed from play and Snipe Hunter, becuase Stardust's effect doesn't work on Snipe Hunter. Stardust Dragon /Buster gets 3000 ATK, so it can tear bigger holes in your opponents life points when its effect isn't needed.
Red Dragon Archfiend is more a brute force, so it doesn't seem to fit your style. Black Rose Dragon only really fits Plant decks and it isn't that good compared to the other three. But it can destroy everything on the field when it's Synchro Summoned.Ancient Fairy Dragon I'm not too sure about.
Of course, the problem with any of them is Synchro Summoning. Stardust Dragon and Red Dragon Archfiend are level 8, so you'll need a very good plan if you are going to use them. And the Buster versions need Buster Mode.
Realistically, they are going to be pretty expensive anyway. The Collectors Tins are the surefire way to get them and they cost thirteen pounds (don't know dollars, sorry.)