I recall the same dialogue wheel in DA:O. ...it's been a few years, but how is that different between O and I?
There's no dialog wheel in Origins.
It's text-based choices, yes, but the choices are numbered and listed from top to bottom.
For example:
1. [sentence]
2. [sentence]
3. [sentence]
4. *'special option'* (such as [attack] / [kiss] / [stay silent]) when available
And of course, it isn't voiced (I mean the Warden isn't).
As for DA2's and Inquisition's dialog wheel, they are quite similar, but not identical. There's more options in Inquisition, some which where simply none existent in DA2. Instead of being "limited to" the usual DA2's Diplomatic / Sarcastic / Harsh options (when presented with them anyway, which isn't all the time to start with), now in Inquisition you can go with "Confusion", "Denial / Disbelief", "History" (that's the book icon, it doesn't appear often at all), or "Deceptive" (that's the crow icon with the purple background, which also appears only a few times). But on top of the new options you still have the "Diplomatic / Sarcastic / Harsh" approach with their respective icons (which themselves show up regularly enough). There's also one that I'd probably call "Emotional", it's indicated by an icon that looks like an eye with a tear, in which case your character would respond more emotionally. By the way the words I'm using here to describe the dialog wheel choices aren't official in any way, it's just me trying to come up with something that can affiliate to them.
What I actually prefer in DA2 is how the voice tone of your Hawke changes accordingly if you keep using the same type of option often enough without suddenly veering off the personality track, and keeping the consistency intact. If from the beginning of DA2 you go with the middle "Sarcastic" one (the purple smiley face icon) and keep doing so for most of the game (don't have to do it for ALL the game's duration but you have to keep some consistency) then your Hawke will usually reply in a sarcastic fashion for the majority of the game even when the dialog wheel with those personality options don't show up. That "personality consistency" system in Inquisition is technically there to some degree, but I find that keeping the personality consistent in Inquisition is frustratingly difficult and doesn't seem to "stick" most of the time.
I'm not sure if that's because the voice actors themselves were not told that they were delivering 'x' and 'y' lines for 'a' and 'b' personality types... or simply because BioWare just plastered those options for mere role-play purposes on our part (without the help of the voice actors). But after one full playthrough (and starting a second one) I thought that personality-wise my Inquisitor seemed to be pretty much all over the place. Even though I did try to keep the same dialog option for most of the game's duration, the problem is that now there's many more new types of responses that your character can give, so you're more tempted than not to veer away from would-be consistencies and try out different responses.
But anyway, the dialog wheel in Inquisition is
similar in mechanic to that of DA2's, but it's definitely more fleshed-out in Inquisition.