I can't pick where there might be a shock and we're both certain it won't be the David v Goliath tie that sees East Junior side Bonnyrigg Rose take on Championship leaders Hibs.
Rose staged their home tie against Dumbarton in the last round at their own ground but for safety reasons – and financial ones – have moved this 20 miles or so to Tynecastle.
That takes away a little of the romance and plays into the hands of Hibs who are well used to playing at the home of their great rivals Hearts.
Scottish bookmakers McBookie.com are offering 285-1 that Rose and Highland League Formartine can produce a Scottish Cup giantkilling double. Formartine are away to Partick Thistle and it's 80-1 both can force a replay.
Worth £2? I'd rather buy a lottery ticket.
It is actually Albion Rovers who are the biggest-priced team in the Scottish Cup this weekend. The League One side are 30-1 to beat Celtic at Airdrie having also given up home advantage.
So where's the value where the big guns are concerned … the double your money bets. Let's start with Hibs and you can have them at evens with Paddy Power to win by three or more.
If they're on form this could be any number despite Kris Commons returning to Celtic and the fact Rose beat Dumbarton away in a replay to reach this stage. Dumbarton were dreadful over the two games and the defeat has acted as a wake-up call for a side much improved since then.
Aberdeen should put several past a Stranraer side who have lost three of their last four. The Dons -2 pays 21-20 at Betway.
St Johnstone are 5-4 to win both halves against Stenny and 19-20 at McBookie to win to nil.
Celtic are unlikely to go full strength on Sunday but after a break Brendan Rodgers is likely to field some of his main men as he bids to keep treble hopes alive.
For big hitters a Hibs, Partick, Aberdeen, Saints and Celtic fivefold pays just over evens at Marathonbet and I can't see anything going wrong there. I posted this bet on Tuesday so it may have been cut.
Elgin are 15-2 with McBookie to cause a huge surprise at home to Inverness, who have lost their last three and are 1-3 at McBookie. With confidence short they might be happy to take their hosts back to the Caledonian Stadium and the draw pays 17-4 at McBookie.
Rangers v Motherwell has been picked for TV at lunchtime and both sides will be refreshed after their winter break although Gers suffered a 4-0 spanking at RB Leipzig on Sunday. Gers had won five in a row at home before losing to Celtic so can be backed at 4-11 at Paddy Power.
Well have lost twice to Mark Warburton's men this season and their only Ibrox victory in 10 was the famous play-off success. With strikers such as Scott McDonald and Louis Moult they could strike so best bet could be Rangers and both to score at 19-10 with Betway.
Another top tie is Ross County v Dundee United and maybe this is where there could be a shock. United have won on four of their last six visits to Dingwall.
The Tangerines have fallen four points behind Hibs after a winless run of three and a cup distraction may have came at the right time. United are as big as 7-1 with bet365 so consider them draw no bet at 23-10 with Betway.
Another decent contest is Dundee v St Mirren although Rory Loy, Saints' new on-loan signing from the Dens men, can't play. Dundee look a little short at 1-2 so I'll be on both to score at 3-4 with Betway while Marcus Haber looks a good shout for first scorer at 19-4 with McBookie.
Dunfermline are in great form in the Championship and are 23-20 with Paddy Power to win at League One Alloa.
Morton and Falkirk have fought out two 1-1 draws this season and a third pays 6-1 at William Hill.
Stirling crushed Clyde 3-0 at Forthbank a couple of weeks ago and look good value at 15-8 with bet365 to repeat the success.
Bets to Consider
St Johnstone to win both halves
Rangers & Btts