My contributions re Vegas (actually working on a travel blog post about this, but not finished yet):
Bobby Flay's Mesa Grill was an unexpected surprise. Absolutely fantastic lamb chop with spicy carrots...service etc. skip the fancy cocktails, not worth the $. But the 48$ lambchop (2) was enough for us to split...with leftovers. Seriously ruined me for others.
Make an early Rez, like 6pm, so you can catch the 8pm show of Absinthe, if you can handle Funny, raunchy, raw...make Andrew Dice Clay look like a nun. But I was literally crying laughing. Plus some good acrobatics. Not Cirque level, but...
Neon museum. Get the dusk tour time slot...light enough to see the ones not lit, e working ones come on during...pretty cool.
Fremont St for the spectacle, and sense of "old Vegas", which is otherwise mostly gone. Except for Circus Circus, which is pretty shabby...but offers free circus performances on the hour.
Downtown container park for the novelty. Just a couple blocks from main Fremont St Experience. There's a really good fancy pizza place a block N of Fremont. Arugula, prosciutto, quail's egg... that kind of thing. Pizza Rock.
Pawn Stars was jammed on a Sat. They have a restaurant next door, Rick's Rolling Smoke. Can't really rec, but if you need a beer at that moment, it's the only game around.
Mob Museum is interesting, but mostly reading. They need more artifacts.
HashHouse at Rio (there's also one at LINQ, but haven't tried that one) for breakfast. Get the sage fried chicken....1 order for you both (and the baby) is more than enough.
If you dig art, many of the Casinos now have multimillion dollar collections...rec Aria/Cosmopolitan. No gambling there, just spa. Also Seven Magic Mountains about 20 miles S. must be tours...we had our car. Also a nice museum on UNLV campus, plus university gallery. Pretty campus.
Great low $ restaurant, Restaurante Guatemalte in a strip mall on Maryland Pkwy across from campus. Good authentic Guatemalan, Salvadoran, Mexican eats for off strip prices.
LOVE is also a good show if you dig the Beatles.
Weed is legal of course, so if you're inclined, there's a shop on LVB by the Stratosphere. VERY friendly, knowledgeable staff...leaf, candies,cookies, topical oils for pain relief. Consume all before heading to airport.
LINQ has nice rooms, isn't ragged out. Nice pool area. Rio is off strip so cheaper, but a bit ragged out. Bally's freshly reno'd.
Should be able to snag weekday rooms for as low as $17...but they all now add resort fees around 20-30/day.
Hope this helps.