How would you rank the romances in terms of how much content it has?

I have played three so far, Jaal's, Gil's and Reyes. I did not finish Liam's. Reyes has 4 romance specific cutscene segments added to his normal story that is already long. It felt as long as Jaal's, who irc had three romance specific cutscenes, but one of them is very long and detailed. Gil has two romance specific cutscenes iirc. but I might have another one waiting, as I have not finished the run. Liam's commitment cutscene was the most underwhelming bit of romantic content in the game.

For me Reyes romance that is done between multiple missions to make it Last the whole game with doing Gill's in parallel, as they do not lock one another out if you commit to Reyes first (leaving Tartarus scene for before going into the end battle) built a lot of romantic content and was a better combo than Liam+Jaal, as they lockout fairily early on. I like it when romances are heavier weighed towards the end of the game, instead of the flurry of flirts and then a dry spell.

I will try female romantic arcs next. My understanding is that both Cora and PeeBee are heavy, while Vetra and Suvi -light.

I was incredibly disappointed by the lack of a "full" romance with vetra. I really liked her character, but all I get for my efforts is a peck on the carapace?

After all the critique, I thought there will be next to nothing to Andromeda romances other than Jaal's, so I found that both Reyes and Gil had more content than I expected. I felt there were as many dialogues as in Jaal's. Now, I did not see Cora's or PeeBee's past the first couple of flirts, as they got locked out by either Reyes or Gil, so maybe I will see inequality of content distribution there. But a Jaal vs Reyes? Pretty much the same in terms of # of dialogues and plot missions centered around them. Gil's cutscenes are shorter, but in Inquisition you have Solas that barely gets any content & folks still like it because of the character appeal and head canon. 

Suvi's the same, sadly. She has a whopping one scene that's romance-exclusive with added flavour here and there otherwise. And not nearly as much content as squadmates even on the friendship path or in banter, either. And for some reason, not many emails, even though those are the easiest kind of character content to make.

What's there is great, though. I just wish the ME:A crew were like DA:I's advisors. They even said they took cues from them. Yeah sure.

Cullen and Josephine got personal quests and romance quests while Gil and Suvi did not. 

Jaal, PeeBee and Cora definitely have the most in terms of romance content, but for me, the friends to lovers story of Liams romance will always be #1. But I will always wish for more of it!

You get to go on a mission with Cullen and your team. You can bet I was watching Cullen fight and also trying to walk up to Cullen to look at him but he'd just go turn his back and hide in a corner. 

Oh, he is like Reyes' then. Good to know. I was not expecting much. I felt I was getting more from the team in Andromeda when not in romance than in Inquisition. 

I think there was a lot of content in Cullen's romance, and it was quite regular all along the game. Because some other romances had everyhing at the beginning and then nothing for a long time, etc. And there is a sex scene (we don't see much with Suvi, and just a kiss with Reyes)...

In ME:A my favorite romance is Jaal, he's my type of alien, I like romantic LI. He is an important character plot-wise too, so I feel that romancing him feels natural. His first e-mail surprised me because it arrived too soon (talking about flirt while I couldn't even get a flirt option yet with him).

I like Reyes too but I wish there was more content and more scenes in his romance.

I think that in general the romances are more developped in a Dragon Age than in a Mass effect... maybe because they think that there are more female players for Dragon age...?

Well I think you kiss Reyes more times than any other male character. Do you need to see him naked?

They dance in full armor, too.  However, regarding what they can do in armor, depends on if the suits "recycle" bodily excretions or not.  If they don't, then there ought to be removable parts around the genital region that might just allow for some fun times, too.