[Master Belisarius]

Originally posted by Me Loonn:
Terran Confederation,
Drushocka Empire,
Sergetti Empire,
Toltayan Confederacy,
Dra'kol Empire,
Colonials Confederation,
Ukra-Tal Collective,
Fazrah Empire and
Norak Continuum

Well, honestly think most of them are not strong races:

Sergetti. It was the first race moded I knew, and was a lot more strong that the standard AI... but now it's far to be at the level of the best TDM races.
Norak: like the Sergetti, it's another race done by Daynarr. And on his time it was great, but now looks outdated (just check the Last time it was updated, many things were "changed" by patches, or discovered by modders after this time).
Drushocka: although is more strong than the standard AI, it's not a truly personalized Version.
Ukra-Tal: a race done by GodEmperor (like the Toltayan). This race doesn't performed very well in my tests.
Drakols: interesting race, but is not strong. IMHO, in SEIV it's very difficult to create a competitive race based on intel.
Colonials: they're cool because they use fighters a lot trying to fit with their RPG, but are not an strong race.
Fazrah it's the Version done by Blade? If not, is not an strong race.

Then, the Terran Confederation in my view, its the only good race in your list... but depending of your galaxy, they could have problems playing with low bonuses.

Both AI death matches are the most objective things done to measure the AI performances. Sure they were not perfect, but wanted to run the games with fair conditions to all the AIs.
And you can see the results here:

AI Death Match 1 (played without bonus)
1 Narn
2 Pyrochette
3 EEE - United Flora
5 Earth Alliance - Aquilaeian
7 Klingon - Namovans - Space Vikings - Toron
11 Romulan - Jraenar
13 Shadows - Angelican Regency - Rage -Praetorian - UkraTal - Azorani
19 SWEmpire - EEEVil - XiChung - Vaxin - Orks - Drakol


AI Death Match 2 (with low bonus):
PLACE NAME POINTS
1 United Flora 32
2 Tessellate 27
3 Space Vikings 23
4 Aquilaeian 15
5 CueCappa 16
6 Narn Regime 15
7 Pyrochette 15
8 Toron 13
9 Fazrah 9
10 EEE 7
11 Khrel 7
12 Orks 5
13 Gron 6
14 Rage 4
15 Namovans 3
15 Earth Alliance 3
17 Sallega 2
17 Piundon 2
19 Klingon 2
20 Teslik 1
20 Drakol 1
20 Azorani 1
20 Praetorians 1
20 Colonial 1
25 Cylon 0
25 Corrian 0
25 Romulan 0
25 Toltayan 0
25 Ekhazan 0
25 Shadows 0
25 Sergetti 0
25 XiChung 0