If you remove the British Jingoists and anti-EU/Pushers-of-own-Agendas; those whom are unsure about independence, are unsure due to the uncertainties put forward. However, the benefits of going independent, like being in the EU, is far superior to any possible problems that may happen, as those possibilities may end up beneficial.
UK: Scotland has control over 9% of their powers, meaning, English voters have the outright say over Scottish voters, even if the law/ruling does not affect England; whilst having 20% of powers semi-devolved, where MSPs vote with English MPs, however, often are voted against. An example of this is Trident.
EU: Scotland would take part in a consensus proportional representation vote where no one country has absolute say, with all non-fixture bills having a VETO option, whereby the Scottish representatives can opt out of following. An example of this is British reps opting out of the Schengen Area and joining the Euro-Zone. Scotland would control well over 95% of all powers and laws; with the rest being semi-devolved through the EU.
UK: Scotland has a voting age of 16 with the AMS system, whilst England uses the FPTP system and all other countries having a voting age of 18; meaning in GEs, not all eligible Scottish voters will be allowed to vote. All Scottish representatives for Parliament is elected, whilst in the HoL, it is an aristocrat oligarchy, whereby, you get a seat by either being appointed the position and thus swinging bias for the party that put you there, or inherit the seat due to being wealthy enough and thus have their own personal interests at heart. The HoL is undemocratic, and can vote for and change laws as they please without any repercussions, with strong bias for the leading party.
EU: ALL EU reps that debate laws and regulations are elected, this is through the d'Hondt system for Scotland. These reps also must file under no form of corruption investigation and have equal say to one another through proportional representation. With consensus and opt-outs, it means countries like Germany does not have absolute control due to having a high population, whilst countries like Malta get no say.
UK: Scotland had a tax revenue in 2015 of ~£56bn but only had a budget of ~£42bn, so this would be a surplus of ~£14bn; however, England required ~£30bn from Scottish tax revenue for subsidies and to make up for budget costs, and as a result, Scotland ended up with a deficit of ~£15bn, to which, England is not paying any money towards.
EU: This means, minus this subsidy to England and UKMF explained in economy; Scotland would have a much larger tax surplus, and in fact, would not only be able to pay off its external debt of ~£91bn [as of 2015], whilst increasing the budget and/or even reducing taxes. Scotland would no longer have to pay off English debt nor pay so much of its economy to England unfairly.
Of course I am in favor of Scottish independence. But this is a viewpoint of an American, looking in from the outside. If Scotland wants to be free of England and Britain as a whole, they should be. If I were a Scot, I certainly would want to sever ties to England.
The Scottish have been under the power of the UK for far to long. The Scottish people deserve to be able to democratically make decisions for themselves. If the people wish to get ride of the nuclear program on their Northern shores they should be able to. Scotland is in more than an ideal situation to have a successful succession from the UK and if the people want it they should have it.
I think that Scottish independence will ultimately be a big mistake. The Scots seem to believe that they have the industry and cash reserves to go it alone. After all, what about all that oil? But what they seem to forget is that once they're no longer a part of the UK, a lot of that money and industry will head south. I mean, you seriously don't think they're just going to hand it all over, do you?
While Scotland has a rich history and a long tradition of wanting to be free from England, sometimes fighting bloody wars to reach this goal, it would not be in Scotland's best interests to be independent from England. The two countries are tied together on the same small island and have too many economic interests in common.
No, I am not in favor of Scottish independence, because the Scottish people have a stronger defense system if they are part of the United Kingdom. Also, the pound is a very strong currecy. The Scottish people still have their own identity, but they get to piggy back on the good things about the United Kingdom.