Question....Problem....I don't know????

What program are you in when you see the dimensions displayed? Does it also list the resolution in ppi?
Either they have a different resolution (e.g. the jpeg is at something like 72ppi and the tiff is at 300ppi (which is the default for RSE)), or they have a different pixel count. Or both. If the resolution is the same, that would explain why the tiff looks worse--it has fewer pixels, due to something you're doing in the conversion process.

Photobucket is changing it to a JPEG, I just tried again.......

Hang on dbump, I'm checkin that!!

Thanks for the patience...........

PHOTOBUCKET!!!! That is the culprit.

OK..............

Resolution in JPEG is 72 ppi

Tiff is 300 ppi

So.....That is how the Tiff is better? more ppi....Now I'm startin to get it.

Yeah.....But not here at home!!

I think I just need some more time behind the wheel of this RAW thingy!!!

Well guys......

I appreciate all the help but I think the whole problem is just Me..........

I'm gonna practice with this and see if I can get it but for now I'll stick with JPEG format

Thanks for puttin up with a pain in the butt!!

.

You'll get it. I look back on my early conversions, and just have to laugh!

Yeah.....Gotta start somewhere I guess!?!?

JPEG is so easy......

Actually, based on the dimensions and resolutions you provided, the two files have exactly the same number of pixels. Multiply 27" by 72 ppi and you get 1944. Multiply 6.something by 300ppi and you get the same (1941, if I remember--rounding error in the math).

PPI is most useful when you're printing (oversimplification), otherwise you can mostly ignore it. The real question is why the tiff looks blockier than the jpeg, when it sounds like they have the same pixel dimensions. I'm puzzled.

In general, the primary advantage to RAW is the ability to alter the whitebalance easily, and also to change the exposure without losing any data. It's a nice perk that the image doesn't have lossy compression like a jpeg, but again, in general, you don't get a practical benefit out of that.
All of which is to say, jpeg isn't a bad thing at all while you're still practicing.
But you should be able to do what you're interested in, in RAW, so don't let this drop if you're really interested in it.

I just want the best quality photo I can get because as I get better and take "great" pics, I want to have them hanging on my photo room wall in the biggest size I can do with 5 megapixels!! (for now)

I suspect the reason the TIFF is inferior is it's being uploaded to photobucket, who are doing lots of compression on it. Convert it to JPG yourself and upload it, I bet it looks better. Be sure to keep all your other steps the same. Or just compare them at 100% on your PC.

Ignore ppi, look at the number of pixels.

I'm not worried about Photobucket...........​...They look bad on my computer right after I save them as a Tiff.

I'll get it!!