Hi there,
Well, if possible the best way to decide would be to fo to a store and see both. Yes, you might not want to buy them there so if possible go to a big retailer, no guilt : )
If that is not possible, I'm going to say first that I love victorinox multitools and to me these are the two best multitools ever.
Swisstool - It is indeed more bulkier than the Spirit and it is a heavy weight multitool but I don't feel like it is gigantic. Everything is bigger that in the Spirit and tools are almost the same. In the Swisstool the main difference is that I think most tools have a little more reach that in the Spirit. Pliers head is noticeably bigger, rest of the tools too but those are more comparable.
Would I carry it with me? Well, I'm full urban during the week, so I wouldn't carry either in my EDC, I have these because I love them. I carry tools like these when I'm riding my bicycle, camping or doing things in the house. For that I could carry either of these but obviously the Spirit is easier to bring with you.
I have to say that I have never had a Surge or so in my hands, I can't compare the Swisstool with those.
Spirit - The Spirit is a smaller (not a lot), more ergonomic version of the Swisstool. In general it feels like a sweeter version, lighter, not too small, still very though, more ergonomic, has almost the same tools as the Swisstool. This tool loses some weight and thus some 'meat-tal', but it it still a great tool (to be honest, this is my favourite). The tools are a little shorter than in the Swisstool, a little easier to deploy (here I have to say that I have no problem at all with either).
Get this too, the saw. The saw in the spirit is a little shorter and is not as high as in the Swisstool, but they made it wider. The saw in the Spirit (and also the prybar for example) is a little wider in the Spirit, a way to make up for them being smaller and keep toughness I guess.
Ok, so. Already too long, my apologies. To me both are great and both can be used without problem. I don't know what would you use these for or if it is a problem for you to carry a little more weight, in the end I can't recomend either because both are great and to me these don't have big flaws.
- If I have to recomend one blindly, I would recomend the Spirit
- If I have to recomend the one I like the most, I would recomend the Spirit
- If I have to recomend the one I would like to have with me for an unexpected, difficult work, or in a situation, I would recommend the Swisstool <- But the Spirit would most likely have me covered too
Whatever you get, I hope you enjoy it.
Regards.
P.D.: One thing I forgot to say. My gloves size is M, my hands fill M sized gloves and I can use L sized in most cases. With my hads the Swisstool can be wielded just fine. Opening the piers completely is too much but for all the uses I need it is fine.