Well...My opinions(just to start this thread)
1.Huns. A delta powerhouse, TH have been here since the beginning of Delta and survived, and remain undefeated. If you look at Beta, Alpha, and Gamma(the only other worlds that are older than Delta), no core alliance has stayed number 1 for this long. Best in all stats. 9.5/10
2.DoA. Victorious from the recent TFP war and swiftly moving onto G-K, DoA has lots of powerhouse players and are in one of the best diplomatic positions in Delta. Completely controls the East, and are helped by their academy IoA.9.5/10(because of academy)
3. Harbringers. Rocketed through the ranks, now completely controls South Delta. 8/10
4.Black. Pretty much packed with everyone that could harm them. In the middle of Hun territory, and pretty spread out, but have heavy hitters. 7.5/10
5.IoA. The poster boy of a succesful training alliance. I won't count this as a regular alliance, as it's a training alliance. 8/10
6.EoTD. A great alliance, holding their own against TH for a long time. Pretty much controlling a large chunk of West delta. 9/10
7. Relentless. Don't know much about them, sorry
n/a/10
8.Ionian Legions. Made everyone who thought IL would get crushed by G-K embarrassed. My alliance. Currently fought G-K to a standstill in o63, o62, and gaining ground in o61. Expanding into o83 as well. My alliance, so I won't rank. n/a/10
9.OTC. A awesome alliance that is constantly underrated in my opinion. From the beginning of Delta, came from one of the worst MRA in Delta history(in my opinion, the Holy War Crusaders), to an elite alliance that fought off enemies from all sides. Gaining ground and winning against Scorpion Capharates, and holding there own against other alliances. 8.5/10
10.S-G Elites. Controls far West Delta. The offshoot of LoCness monster, I believe. Good alliance 7.5/10
11.G-K. As much as I hate to say it, competent enemies. And elite alliance. 7.5/10
12.Kitten Smashers. I think they merged with the offshoots of TFP? 6.5/10 until they prove themselves