err... If you cannot stand loud and obnoxious sounds, a lovebird may not be the best. I had to work with lovebirds, even the "hand fed" ones and they tend to attach to one or two people, and are not so keen on strangers. They tend to squawk loud and obnoxiously when they are scared, angry or sometimes when they do not get their way
you'd want one that was hand raised, hand fed, and held.
Budgies are good for beginners, and do not have as strong of a bite as lovebirds (if you intend on getting a non-trained one) and generally they'll get along with most animals, most people, and some are just naturally friendlier. Those I've worked with too, and have come across some of the flighty biters, and the "okay you caught me, I'm done panicking" ones, and the "sup?" kind
I perosnally love budgies. They love making noise though!!
I've also dealt with a lovely parakeet I died for in the store that lived with budgies. She'd been there for a few years, then when I went to get her she was sold x.x -sigh- She was a fairly good size. and generally, friendly as well.
Canaries and finches make the most pretty sounds, with their comical head tilt. They aren't as interactive, and depending if you want interaction or not these birds are considered better for apartments or places with thinner walls as they tend to be more quiet (I loved this one yellow canary!!! <3) and have more soothing sounds than a budgie or lovebird. I personally find budgies easier to handle than lovebirds... but, that's just me :)
As for the...loirkeets...never heard nor seen one :p