Capacitor

Again, the HT’s will cost “about” the same as Odam? Why not go for the better Odam?! The HT’s are warm and full bodied sounding. Very musical. They are not on the level of the Odams however in most ways really. Not heard the Rike.

Yes, the HTs are better than the Theta. They will not give you the realism, inner detail, dynamics and bass articulation of the Odam. Jupiter has stopped making the HT as they are very time consuming to make. Limited inventory left on them.

The True Coppers are also better than the Theta. Just because they are film/paper and foil like the HT does not mean they will sound as good as the Odam. They won’t. You may have an aversion to the Odam’s based on something other than price? Seems that way anyway.

Don’t go by Humble Audio cap reviews solely as the caps were ONLY tested in a speaker crossover, not electronics. That is a very important distinction. Also, on a tweeter mostly! Caps can and do perform differently in high voltage electronic positions.

The Odams are not at all over detailed or bright or forward. No, they are richly detailed with natural warmth and fulsome bass foundation. They are the best of the ones you have mentioned. Frankly, I like them as much as the much more costly Duelund CAST in electronics. Yes, that good.

If you must stay within a given budget, then this would be a suggested order of performance hierarchy to consider. 
1) True Copper & Jupiter HT would be good choices.  True Copper will deliver slightly better resolution, inner detail and bass articulation.  The HT will be warmer, darker sounding, with rounder bass lines. 
2) Miflex will be like the True Copper, but more forward and lively in the upper mids and highs. 

@grannyring,
Although your comments are addressed to @jasbirnandra I’m sure others viewing this are obtaining valuable insight. Not that yours (Or anyone’s) opinion is absolute but certainly it provides some general distinctions between the various capacitors sonic signatures.

Before deciding to commit to an expenditure on capacitors it is very helpful to have some degree of appreciation for what their sonic character/signature may be. For most it is not feasible to buy every single capacitor of interest and test them in one’s audio system. Someone such as you who has heard a large sample size of capacitors can offer meaningful guidance.
Charles

The only somewhat negative experience I've ever had with caps we're talking about is once when I used multiple VH Audio TFTF in totally modded phono stage. Too much of the sterile, clinical sound with multiples of that cap. Would have been better off mixing and matching caps in that case. Mundorfs with silver, have to be careful where used. Otherwise, never made a bad choice, purchases always based off many reviews over much time. I'd go with grannyring's suggestion of Odams, why second guess yourself. Listen to those with experience with cap in question. I'd only say all the caps we're talking about will be improvement over the theta. Only you know exactly what seasoning/cap you're  looking for. Odams sound like they have it all.

I’ve only ever used TFTF on tubed components so I never got to the point where they sounded sterile. While I’ve never compared the TFTFs directly with CuTFs I get the impression the CuTFs are a touch warmer. 

In my pre and power amps all the signal path caps are VCaps, two ODAMs and four CuTFs. Overall my sound is a little less warm than before but given I replaced the OEM caps with both CuTFs and ODAMs I can speak only for the blend of the two and not CuTFs and ODAMs individually. 

What’s most noticeable is detail - it’s off the charts. I cannot recall TFTFs being so transparent. Anybody on a budget should go ODAM. 

Did I mention how detailed they are?