Before looking into Aintree betting tips, it's best to look at trends to seek out which horses will arguably run best.
The most winners have had at least 10 chase runs in their career, aged between 8-11, have run at least three times in the current season and have normally run within the last 20-60 days.
A horse which ticks plenty of those boxes is Willie Mullins' Rathvinden, who is a 33/1 shot to win the National. A former National Hunt Chase winner over four miles at Cheltenham and with plenty of proven stamina, the eleven-year-old can handle all kinds of ground, having won on everything from good to firm to heavy.
The veteran horse won on his latest run, which was the BetVictor Bobbyjo Chase, beating Gordon Elliott's Alpha Des Obeaux by over three lengths.
Another horse which is an each-way chance this year is Lake View Lad. He has won or placed in 11 of his 12 chase starts, winning both his races this season.
There are question marks around his stamina, as there are with a lot of horses in this race, but he ran an absolute blinder at the Cheltenham Festival and at 20/1, there's a good opportunity he can at least place.
Ms Parfois was second in the Midlands Grand National, proving that stamina is not an issue and, with a clean round, there is no reason why Anthony Honeyball's horse won't win.
At odds of 25/1, Ms Parfois is a serious contender to take Tiger Roll's title and prevent him from being the first horse to win back-to-back National titles since Red Rum in 1974.
But it is also hard to not look at the race favourite in Tiger Roll, whose Cross Country win at the Cheltenham Festival was simply incredible. He won at a canter by over 20 lengths and, as a result, his odds have been cut to just 5/1 to win his second National.
If Tiger Roll manages to avoid any trouble and race from the front, he is simply the best horse in the race. 5/1 is one of the shortest odds a horse has ever been for the National but, clearly, the bookmakers do not want to take the risk.