What moments are you looking most forward to in the LE?

If I were to get the Legendary Edition, I am mostly interested in these things in the original Mass Effect:

Anytime I see or go to the Citadel - I cannot wait to see it in its full glory.
Watching the Destiny Ascension glide by and hearing that Volus talk about his tour of it.
Walking up the stairs to the Council Chamber - I love that area with the waterfall and seeing the "cherry trees".
Seeing the Ward arms stretching out before me, and the vast city-scapes with all of that vehicular traffic and buildings.
Walking by the Krogan monument and the Conduit. They need to upres that monument badly.
Ilos. The last stand of a great race, a beautiful area, filled with lost technologies, sadness, and yet hope.
Noveria - So very Zen, with pretty waterfalls and glass walls and ceilings looking out on terrible weather. Port Hanshan will be a delight.
Eletania - That sky was so amazing, seeing stars and rings around the planet.
Presrop, so that I can look up and see Klendagon and the Great Rift valley in the night sky.
Virmire - it is one of the most beautiful worlds we visit
Ontarom, because the Shifty Looking Cow needs snuggles and a few credits.
All the worlds in the Geth Incursions in the Armstrong Nebula - some of the best night skies in all of the game.

Mostly ME1 and hopefully having the appropriate gun (not the avenger ar) in cutscenes.

Also this. I want to see my N7 Piranha shotgun, not that bloodly rifle!

I am looking forward to seeing if...

ME1 has better auto saves.
The ME2 Conrad Verner import bug was fixed.
The opening of ME2 has Ashley in it instead of Liara if you romanced Ashley, like it was originally.

I am looking forward to seeing...

The new improved character creator.
The ME2 armor and weapons packs that I never bought.
Better load times and smoother operating then what I experienced playing ME1 and ME2 on the PS3.

You shouldn't have any issues romancing any straight male, asari or lesbian female throughout the series as a renegade femShep. Paragon/Renegade alters dialogue and story outcomes moreso than actual romantic relationships with characters. They'll think you're a hardass bitch, but still cooperate and follow you through hell. Although, I do think renegade can get some squaddies killed in ME3.

Arrival, I think. Only story DLC I never bought and quite frankly, I don't even know why I didn't.

I am looking forward to the green foliage in the Hammerhead sections of the Project Overlord mission looking like actual green foliage and not like N64 graphics.