Batman and Spider-Man. There are a bunch of other characters that I love too, but those 2 are definitely my favorites.
I've always found Spider-Man to be very relatable. In his personal life, he experiences the same problems that a lot of people have to go through. I've also always loved how his stories (his best stories anyway) can be so humorous one moment and then have extremely emotional moments the next. Through the years, I've laughed with him (and sometimes at him) and cried with him, and for that reason, Spider-Man will always be one of my favorites.
Batman is basically the ultimate paradigm of what someone could be if they set their mind to it. This drive has enabled him to be considered an equal to "gods" such as Superman, Wonder Woman, and the rest of the Justice League. He's just an extremely cool dude with lots of amazing stories. He is easily my favorite superhero (though Spider-Man is a very close second).
Wolverine would probably be my third favorite (just in case anyone was curious).
For Marvel: [Female] MEGGAN BRADDOCK and [Male] SYNCH/Everett Thomas - I'm a sucker for the Marvel "underdog" characters that have so much potential if writers just give them a chance. For DC: [Female] DONNA TROY and [MALE] AQUAMAN