Both Titans are seriously OP imo. If you are using them with the Advent Trinity, which you should be, you are dishing out damage that the tec only wish they could. Sure the Titans themselves seem underwhelming at first glance but their synergy in the trinity makes them really OP.
Chastic Burst and Unity Mass with Malice is awesome to behold. Malice/Unity Mass can easily hit an opposing Cap ship for 5.5K and 42 frigates for 1650 each an opening shot when shield mitigation is at its lowest. Chastic Burst hits every ship for 1000+ and then hits every ship effected by malice for 300 x the amount of ships effected (300x42=12000+ ( I haven't tested Chastic Burst out yet in a large fleet battle).
Neither Titan is going to be effected at all till the Radiance Battleships are dealt with. And if you kill them, which you will be taking 200% damage( which was funny to see a Ragnarok blow its self up with snipe because it didn't remember that) you also get to add those levels to your Titan when they die with Resurrection. Add in the guardians and the fact that the TEC titan Buffs were already duplicated by the Advent Cap ships, you have a very strong synergy.
Don't forget with all the AoE weapons, its super easy to get 200% attack bonus on the Eradica as the enemy goes after your Long range frigates. Throw in the extra 25% your getting anyway because you were smart enough to open up with your super weapon when you warped in, you just eliminated the opponent.
Sorry the Advent are the hardest to balance because they are just so damn fun to play.
edit: Can't add