Sunday's A-League Grand Final has all the ingredients to become one of the most exciting and memorable deciders in the competition's history.

Last Sunday's thriller between the Wanderers and the Roar has been referred to as the best game the A-League has ever witnessed. It will surely prove a hard act to follow, but I'm expecting something similar in terms of quality and attacking prowess on the final day of the season.

Adelaide United have been the form team of the competition for many months now and decimated a very capable Melbourne City outfit last Friday Night.

They'll be refreshed after an extended break, which followed a week off during the initial round of final's fixtures.

A sell-out of Adelaide Oval is expected, and whilst the Wanderers fans are perhaps the best travelling set of supporters, not even they can deny Adelaide a distinct home ground advantage.

Bruce Djite is in brilliant scoring touch, while Pablo Sachez offers something off the bench that many sides cannot match. La Rocca and McGowan have been one of the premier central defensive partnerships across the competition, while Eugene Galekovic is still one of the best keepers in the Australian scene.

Meanwhile the Wanderers are flying high in terms of confidence after overturning a horror start last weekend which saw them fall three goals behind to the Roar.

After overcoming the huge deficit, the Wanderers will feel as though there is nothing they can't top, even if they were again to fall behind early.

They have one of the competition's form players right now in Romeo Castelen, who seems to have discovered the scoring touch that denied him from being of the competition's marquee stars.

Brendon Santalab seems to find a way to score whether coming off the bench late or starting. Mitch Nichols is delivering top class service, while Mark Bridge has plenty of Grand Final experience, including a title-winning goal on his resume.

Andreu, despite a few errors this past weekend, has formed a solid partnership with Topor-Stanley, while Dimas never seems to be far off the ball. Andrew Redmayne has found form between the sticks.

Dario Vidosic's presence off the bench can truly turn games in his side's favour, giving Popovic a trump card to play late in the game if required.

Looking at the makeup of both squads it is fair to say that there is so little between these two sides right now. Both contain in form striking options. Both contain goal keepers capable of pulling off a near impossible save.

Both sets of defences are capable of shutting down almost any opposition, while both coaches are clever tactical and motivational leaders.

Across the season only a single competition point could separate them, and I expect it to be just as close on Sunday afternoon.

Considering they scored nine goals between them last weekend, it's safe to assume that there will be goals. I certainly wouldn't be wagering on a nil-nil defensive masterclass.

I would not at all be surprised if this game were to go into extra time, with penalties far from out of the question.

Adelaide shade their opponents slightly in terms of form, but the best (and sometimes worst) aspect of a one-off Grand Final is that everything else that happened across the seasons means very little when that opening whistle blows.

Neither side has captured an A-League crown, so we'll see a side lift the famous trophy for the first time this Sunday.

There is also a guarantee of a huge, and vocal, crowd being in attendance.

As for on the pitch? There are very few guarantees, but I'm willing to predict that there will be fireworks.

Home ground advantage is huge in these games, but the fact that United have to move from Cooper's Stadium may upset their game ever so slightly.

That being said, Adelaide are the home town team and will have the majority of fans in the stands. That, and only that, is the reason I am leaving slightly towards the reds.

There have been some dud Grand Finals across all sports, but I can't see this game falling into that category.