As for your example, well I use the 'Mirror' tool a lot since all my ships are symeticrical left-right (and in some cases, almost top-bottom too
), so having a spike on the opposite side is no problem.
I mean y axis copying - so you'd end up with 4 spikes if it were mirrored.
And you don't have to use 'remove polys-boolean' either. I only use Booleans for those really akward things (round holes in square faces, tunnels through things etc), the rest of the time I use extrude. In fact, that is one of my most used tools.
So how would you reattach the spikes without Booleans? I know gluing wouldn't work.
I'm not trying to say that TS is superior to anything else. It all depends on how you like to work

Ah, but who would
like to make 14 mouse clicks on various icons when they could do an identical or superior operation with one or two key-taps and one or two mouse clicks?

In fact I just read right through that tutorial Colonol Dekker linked to, comparing Blenders equivillant functions to the ones listed there for TS. Blender won
every time.
I really honestly reckon this is a case of 'anything TS can do, Blender can do better."
Oh, and I quite liked this part of the tutorial:

"Once you are done setting the starting properties for your object, you can right-click on it and get into edit mode. Here you can select faces, edges or vertices and do some editing tasks......Sometimes you can’t seem to find the object editing tool panel even after you right-clicked on your object. In this case, the panel has been minimized and it might take a while to find it. Just look around in your scene until you find the button."
I've seen this myself a lot, and opened up TS to see if it would happen again. It did.

In the words of the tutorial: "it looks like the little grey square, but with a little black arrow on it." See if you can find it here:
http://i5.photobucket.com/albums/y184/VA--Twisted_Infinities/EditingPanelHideAndSeek.jpg========
dr22: You like editing meshes verticie by verticie do you? Awesome - that's what blender is brilliant at.

In fact, that's how I do my ships in it. I start by going to a side view, deleting the default cube, creating a plane, deleting all but one vert of the plane, and then using the extrude key on that vert to draw the side-on outline of my ship dot-to-dot style.
(There is a vaguely appropriate function in TS - the drawpanel, but TS likes deleting any verticies or edges that aren't attached to a face, so it's not a particularly helpful feature in the way you're describing.)
Also, if you like drawing outlines of your ships on paper first, you can set scanned images as your backdrop in blender, and do the dot-to-dot technique to match it nicely.

I can write up a small guide on how to do that if you like - just let me know.