Myself and a few corpmates logged onto sisi this weekend to test out the new supercaps. We were pleasantly surprised at the relative balance of the capital ship classes in regards to each other. Here is my overall impression of each ship class, though some balancing still needs to be done from race to race.
Titans
Observed role: Jump bridge + Vanilla Capital Popper.
Strengths:

Ability to kill carriers/dreads with impunity

Good tanks

Excellent gang bonuses
Weaknesses:

Not as much DPS as Super Carriers, balanced out by faster more reliable damage application.

Some titans can't reasonably use all of their turret/missile hardpoints for weapons.
Super Carriers
Observed role: Super-capital hunting strike groups.
Strengths:

Excellent DPS

Good tanks

Outgoing remote reps cannot be interrupted
Weaknesses:

Can't solo tank, must be in a large remote repping group.

Fighters and Fighter Bombers can be killed, and are very expensive.

Travel time of Fighter Bombers kinda sucks.

Drone Control units if turned off loose control of a 'drone' instead of just having it return to ship. Very costly.
Dreads
Observed Role: General DPS ship, relatively expendable
Strengths:

Great DPS for the price

DPS is applicable at good ranges if fitted for the job.

Decent local repping

Tracking tweak makes them somewhat more effective against sub-caps

Short-range weapons are now viable against other captials
Weaknesses:

Gets one-shotted by DDs

DPS is weak compared to supercaps

Can't be remote repped

Essentially big player-flown sentry drones: expendable static DPS output.

Sentry range for all dreads is 60km with max skills
Carriers
Observed Role: RR support, DPS support, and Point-Defense
Strengths:

Effective against most sub-capital threats, and various capital weapons

Extra RR support, which is needed to keep super-caps alive

Can be remote repped

Relatively cheap + expendable

Ability to triage if needed
Weaknesses:

Minimal tank, even with a pure buffer tank and rr, it won't last long

Minimal DPS against capitals

Gets one-shotted by DDs

Can't be remote repped in triage

Can be jammed when not in triage, preventing remote rep support
Overall, I like the general state of the capital classes as it will apply to capital fleet fights. Titans sit at the middle of the fleet, instapopping vanilla caps left and right. Super Carriers apply good DPS and good remote reps, working together as the core of the fleet and supporting the titans. Dreads enter siege and make things die, while getting popped one by one themselves. Carriers add logistic support and point defense against sub-capital gangs, while also being killed one by one.
Overall, capital fights seem like fun. There seems to be some strategy involved and that is a welcome change over the previous dread vs dread fights.
What are your opinions?