What I would find helpeful would be for posters to say who they married, and what in-game benefit it gave you. I know for instance that the girl in Riverwood sets up a store and gives you some of the money (and sells to you). What other in-game benefit are there? I looked at the page above and it doesn't go into sufficient detail. Thanks.
All marriage is the same. You can move in with your new spouse or they can move in with you, they open up a shop and give you your share of their daily profits (100 septims) which stack over time if you don't collect. They also can make you a daily "Homecooked Meal" which boosts health, stamina and magicka regen 25% for 600 seconds and if you sleep near to them you get the "Lover's Comfort" bonus.
This is the same no matter the NPC. Ysolda doesn't buy the Bannered Mare, Muiri doesn't magically use the alchemy table more often, etc. Even battle-hardened and fiesty Aela becomes like a puppy once you marry her. The only real benefits of marriage are that you can potentially get a house early on in the game for free and you have a guaranteed income of 100 gold a day.