If I were going to choose between Nero and Titus, I would definitely side with Nero. He was a monster in a number of ways (for example, see this post
). Titus was your typical Roman military commander (and later Emperor).
In Titus' defense, any excesses attributed to Titus by the Jews, I believe he would say that they egged him on by their own intransigence. That would be the impression I get from reading about him in Josephus' Jewish Wars
But it depends on how one understands the phrasing of Rev 13:18.
Rev 13:18 ESV "It is the number of a man" = lends itself to identifying a particular individual.
Rev 13:18 NET "It is man's number" = describes a characteristic of humans.
And since the number is attached to the beast out of the sea (Rev 13:1), it would also depend on how one interprets that beast.
Rev 13:2 describes the beast in terms alluding to Dan 7:4-6. I understand Dan 7:4-6 to be referring to the Babylonian, Medo-Persian & the Grecian Empires. (Not everyone here shares that view.) But for me, relating it to the rise of those empires, and in a vision that takes us all the way down to when God takes over rulership of mankind via the "holy ones" (Dan 7:26, 27), that, to me, lends itself to thinking that the number describes humans collectively in some way.
Something else to consider: If the number describes an individual such as Nero or Titus, then, the prophecy would really only concern those who lived during their respective few years when they were significant (Nero = 54-68 CE; Titus = 70-81 CE). This also, IMO, lends itself to the number identifying humans in general, not an individual.
And, if the number 666 is taken as a human characteristic, the triple repetition of six, especially in comparison with the use of seven throughout Revelation, would lend itself to describing some pronounced lack or failure. Anyone allowing himself to be branded with the number of the beast would definitely be siding with a losing cause.
At any rate, that's my take on it. YMMV
(Sometimes I get the impression that Revelation was written in such a way that one could attribute some things to Nero. Perhaps it used certain circumstances that existed then to picture a larger Christian era reality.)
For cross-reference purposes, see the discussion of the 'mark' and 'number' of the beast in posts # 34 thru 37 starting here
And see a tentative chiastic comparison between the trumpets of Revelation (chapters 8 thru 11) and the passage about the beasts (Rev 13:1 thru Rev 14:5): here
Bobcat (not sure what my number is yet