I'd like to add some more missions to the list:
UNC: Hostage -->it's done relatively fast, rewards with paragon/renegade points and a possible news entry and email in ME2.
UNC: Hostile Takeover --> rather lengthy, but you probably get to see Helena Blake in ME2, also Para/Rene-score.
UNC: Lost Module//Eletania --> You get to see Pyjaks, but the most important thing on this planet is imo the Prothean Ruin and Orb* in the south western corner.
*You need to have completed Shaira's quest on the Citadel for this to work.
Pyjaks are also great to unlock weapon trainings for subsequent characters
UNC: Missing Survey Team --> This one just because a similar encounter gets mentioned by Miranda in ME2 anyway (on or after the dead Reaper), and there is a similar N7 mission in ME2.
UNC: ExoGeni Facility --> a small bit more insight to Exogeni and it gets you some paragon or renegade points. (Totally unrelevant otherwise)