marvel - Were all titans as powerful as Thanos?

In Guardians of the Galaxy we learn that only someone with great power can touch an Infinity Stone, yet we see Thanos pick them up with no issue. Even without the stones, Thanos is shown to be extremely powerful and feared throughout the galaxy.

Were all Titans as strong as Thanos, i.e. could they all happily hold Infinity Stones?

In the Marvel Cinematic Universe there is little information on the Titans, so I'll accept answers from all around the Marvel universe.

Answer

The Titans of the Marvel Universe, as orginally conceived by Jim Starlin, are of very different power levels, but few (if any) are as powerful as Thanos. Starlin conceived the Titans as an offshoot branch of the Greek Gods, with Thanos' father Mentor being the brother of Zeus. Thanos' brother Eros, who became an Avenger by the name Starfox, is portrayed as rather strong, but not at Thanos' level. However, being gods, all the Titans could feasibly be able to handle the Infinity Stones.

Marvel later retconned the Titans to be an offshoot of the immortal Eternals, which means that we should compare Thanos' power levels to these. Since the Eternals, as originally conceived by Jack Kirby, cannot be killed by any means, it would stand to reason that they cannot be killed by the Infinity Stones, either, no matter their power level in other spheres. This idea of total immortality was, however, diluted in later versions. At any rate, there has been a lot of inconsistency about the immortality of Eternals over time. Great Zuras, for instance, was killed during the arrival of the Final Host of Celestials. In Neil Gaiman's run, Zuras killed Sprite, another example of mortality.

Also worth noting is that handling Infinity Stones seems to be easier if the handler isn't in direct physical contact with the stone. Ronan and Loki could handle their stones easily when affixed to staffs, and Doctor Strange can handle his stone when it is in the Eye of Agamotto. Thanos uses gloves when handling the Infinity Stones, which may be why he has no serious issues. In addition, the stones seem to be very different in how hard they are to handle. Vision has no problems carrying one in his forehead, and both Loki and the Red Skull handled the Tesseract stone barehanded without issues.